Walkie-Talkies, Two Way Radios for Communication


What are Walkie-Talkies?

Walkie-talkies, also known as two-way radios, are hand-held, portable, two-way radio transceivers. The walkie-talkie’s development during the Second World War has been variously credited to Donald L. Hings, radio engineer Alfred J. Gross, and the engineering teams at Motorola.

Similar designs were created for other armed forces, and after the war, walkie-talkies spread to public safety and eventually commercial and job site work. Major characteristics include:

  • A half-duplex channel (only one radio transmits at a time, though any number can listen)
  • A push-to-talk (P.T.T) switch that starts transmission

Typical walkie-talkies resemble a telephone handset, possibly slightly larger but still a single unit with an antenna sticking out of the top. Where a phone’s earpiece is only loud enough to be heard by the user, a walkie-talkie’s built-in speaker can be heard by the user and those in the user’s immediate vicinity. Hand-held transceivers may be used to communicate with each other or with vehicle-mounted or base stations.

How Private Investigators Use Walkie-Talkies and Two-Way Radios

Private investigators often utilize two-way radios as a crucial tool in their investigative work. These devices enable real-time communication between team members, providing a secure and efficient information exchange. Here is an overview of how private investigators use two-way radios:

  • Coordinated Operations: Private investigators often work in teams; effective communication is vital for coordination. Two-way radios and walkie-talkies allow them to stay in constant contact, ensuring everyone is on the same page regarding objectives, observations, and potential leads.
  • Real-Time Updates: Investigative work can be dynamic, with situations evolving rapidly. Two-way radios enable investigators to provide immediate updates on their findings, allowing team members to promptly adjust their approach or respond to changing circumstances.
  • Maintaining Discretion: Private investigators must frequently operate discreetly to gather information without drawing attention. Two-way radios offer a secure, private channel of communication that cannot be intercepted easily, ensuring that sensitive information remains confidential.
  • Avoiding Electronic Traces: Unlike phone calls or text messages, two-way radio communication doesn’t leave a digital trail that can be tracked or traced. This is crucial when dealing with sensitive cases or when anonymity is essential.
  • Enhancing Safety: Private investigators may work in potentially risky situations. Two-way radios allow them to quickly alert colleagues in emergencies, providing a lifeline in critical situations.
  • Adaptability to Various Environments: Two-way radios are designed to function in various environments, including urban areas, remote locations, and places with poor cellular coverage. This versatility ensures that investigators can communicate effectively regardless of their location.
  • Hands-Free Operation: Some two-way radios come with accessories like earpieces or headsets, allowing investigators to keep their hands free while maintaining communication. This is particularly valuable when they must be discreet or have their hands occupied with other tasks.
  • Immediate Response to Leads: Private investigators often follow leads that require quick action. Two-way radios and walkie-talkies facilitate instant communication between team members, allowing them to respond promptly to new information or potential breakthroughs.
  • Code Language and Signals: Investigators may use coded language or signals to communicate discreetly over the radio. This adds an extra layer of security, ensuring that even if someone were to intercept the communication, they would find it difficult to understand.
  • Integration with Other Equipment: Two-way radios can be integrated with other investigative equipment, such as surveillance cameras, GPS devices, and recording equipment. This allows for a seamless flow of information between various tools, enhancing the effectiveness of the investigation.

Two-way radios play a vital role in the toolkit of private investigators. They provide reliable and secure communication, enabling effective coordination, real-time updates, and confidentiality. By using these devices, investigators can enhance their efficiency, safety, and effectiveness in conducting their investigations.

Best-Selling Walkie-Talkies / Two-Way Radios

The following are recommended walkie-talkies and two-way radios for private investigators. View a list of the best-rated models on Amazon.com.

Bestseller No. 1
Midland 50 Channel GMRS Two-Way Radio – Long Range Walkie Talkie with 142 Privacy Codes, SOS Siren, and NOAA Weather Alerts and Weather Scan (Black/Silver, Pair Pack)
  • 2-Way Radios – These Walkie-Talkies Feature 50 Gmrs (General Mobile Radio Service) Channels, Along With Channel Scan To Check For Activity. The Jis4 Waterproof Protection Prevents Splashing Water From Having Any Harmful Effect On It (Splash Resistant)
  • 36-Mile Range – Longer Range Communication In Open Areas With Little Or No Obstruction. Easy Voice And Sound Activation Transmission (Evox) With 9 Sensitivity Levels For Hands-Free Operation
  • 142 Ctcss/Dcs Privacy Codes – The Privacy Codes Give You Up To 3,124 Channel Options To Block Other Conversations
  • Noaa Weather Scan + Alert – Noaa Weather Scan Will Automatically Scan Through 10 Available Weather (Wx) Band Channels And Locks Onto The Strongest Weather Channel To Alert You Of Severe Weather Updates. Noaa Weather Alert Will Sound An Alarm Indicating That There Is A Risk Of Severe Weather In Your Area
SaleBestseller No. 2
Walkie Talkies, MOICO Long Range Walkie Talkies for Adults with 22 FRS Channels, Family Walkie Talkie with LED Flashlight VOX LCD Display for Hiking Camping Trip (Orange 2 Pack)
  • 【Two way Radio】FCC ID ; 2ASV6-T5A. MOICO walkie talkies have 22 FRS channels plus 99 sets of CTCSS tones (privacy codes),The continuous tone-coded squelch system gives you up to 2178 combinations to help block other conversations.one-to-one or one-to-more communication function allow more walkie talkies to communicate on the same channel.
  • 【VOX-Hands Free Function】Walkie talkies for adults have easy voice and sound activation transmission (VOX) with 3 sensitivity levels for hands-free operation.you can keep in touch with friends and families at any time when you camping adventure or in a crowded supermarket.
  • 【 Long Distance Walkie Talkies】Walkie talkie can reach up to 3 miles communication range in open areas such as rural areas, suburbs or seaside, etc. where there is no shelter. If in cities or towns, walkie talkies can reach 0.6-1.2 miles. Adverse weather, car(Iron material), voyage and buildings will affect the range. The actual distance depends on the obstruction of the current environment.
  • 【Back-lit LCD Screen and LED flashlight】This walkie talkies has bold green back-lit LCD screen provides high visibility in night. Built-in LED torch can be used as both flash and emergency light.Small size and light weight, Hard and durable shell, drop-proof.MOICO walkie talkie let you and your family enjoy games or outdoor adventures.
  • 【After-Sales Service Assurance】MOICO provide lifetime customer service.If you have any questions, please send email to us through the Amazon platform, we have professional engineers can solve your problem as soon as possible.
SaleBestseller No. 3
Retevis RT68 Walkie Talkies with Earpiece, Portable FRS Two-Way Radios Rechargeable, with 6 Way Multi Unit Charger, Hands Free, Long Range, Rugged 2 Way Radios 6 Pack for Adults School Church
  • Efficient and Rapid Charging; walkie talkie with 6 way multi unit charger station; charge up to 6 pcs two-way radios or batteries at the same time; help you save more space and time
  • Safe Charging; with multiple safety charging protection; overcharge protection; over voltage protection and short circuit protection; provides safe support even in crowded restaurants or warehouses
  • Walkie Talkie with Ear Hook Earpiece; fit to your ear; soft and comfortable; rotate to fit in with left and right ears; provides you with clearer and safer communication
  • Rugged 2 Way Radios; the body is made of durable and sturdy materials; can withstand shock and vibration in harsh environments; can be used for a long time to save corporate communication costs
  • Long Range Walkie Talkies with Clear Sound; the antenna is protected by a sealed enclosure and it is non-removable and sturdy; the transmission is more stable; providing you with crystal clear sound
SaleBestseller No. 4
Motorola Solutions T260TP Talkabout Radio, 3 Pack, White
  • Included Components: 3 Radios, 3 Belt Clips, 3 Nimh Battery Packs, 1 “Y” Cable Charging Adapter With Dual Micro-Usb Connectos, 1 Charging Cable, 1 User Guide

Other Two-Way Radios

Uniden GMR3689-2CK 36-Mile GMRS TRU Waterproof Two-Way Radios with Headset Jack, two radios (Yellow) – Uniden’s GMR3689-2CK waterproof radios are lightweight, palm-sized radios that have a 36-mile range, 22 channels plus 142 privacy, and 143 group codes. In addition, they have advanced features like direct and group calling with ID. These walkie-talkies are also completely waterproof, making them the perfect choice for sporting events. They are a great way to stay in contact with family and friends, hiking, skiing, or nearly any activity where communication is vital. (This item is currently out of stock)

Motorola Talkabout MC220 Two-Way Radio Series: One of the rugged “Value Series” models, the MC220 has a range of up to 16 miles and is designed specifically for active families. Combining General Mobile Radio Service (GMRS) technology with Motorola engineering, this radio is ideal for dynamic outdoor communications. Functional New Design: The Talkabout MC220 is designed for great looks, as well as solid, practical, weather-resistant operations. The sleek, rugged housing protects the radio, whether used on the playground, in the neighborhood, or at the mall. (This item is currently out of stock.)

Full-Featured Privacy: The Talkabout MC220 has a 22-frequency capacity, with 38 privacy codes to reduce interruptions. The Motorola QT functionality allows the radios to be set to communicate with other compatible Motorola products, adding another level of distinction from the other manufacturers. Accessories for Operations: This model features an accessory connector, permitting a headset for easy hands-free operation. Power to Spare: These radios are sold in pairs – charge up the built-in NiMH power source or drop in three AA batteries, and you’re ready to start talking.

The Cobra CTX425 is a Micro TALK 2-way radio, two-pack up to a 25-mile range. This unit consists of:

  • 22 channels
  • 121 privacy codes (38 CTCSS codes/ 83 DCS codes)
  • 8 NiMH rechargeable AAA batteries
  • 2-port desktop charger
  • Hands-free operation (VOX), a 10-channel NOAA radio, a backlit LCD, a scanning function (channels/ privacy codes), a single pin speaker/ microphone/ charge jack, a 10-channel memory, selectable hi/low power in GMRS, call alert (10 selectable tones), key lock, roger beep (selectable on/off), keystroke tones (Selectable on/off), a low battery indicator, battery/ power saver mode, signal strength meter, auto squelch, a maximum range extender, and a belt clip.

Garmin Rino 120 GPS / FRS / GMRS has a voice scrambler and vibration mode for top-secret calls. The Rino 120 has state-of-the-art GPS navigation and 2-way communications combined, with enough memory to download detailed mapping for driving, hiking, hunting, fishing… or just about anything else you can dream up. It’s waterproof, can send communications up to 2 miles using FRS channels and 5 miles using GMRS channels, and can “beam” your exact location to another Rino user using “position reporting.” And because the Rino 120 had standard FRS / GMRS capabilities, you can talk to friends or family who own conventional FRS / GMRS radios. There’s also a voice scrambler and a vibration mode for silent calls.

They have a Transmission distance of up to 2 miles using FRS and up to 5 miles with GMRS (using GMRS frequency in the U.S. requires an FCC license); the walkie-talkie has external voice activation (VOX); Ergonomic design for one-handed operation, with the call, press-to-talk (PTT) and page mode buttons on the side, power/backlighting button on top, and volume and zoom buttons in front; Unique 5-way cursor for channel selection and volume adjustment in FRS / GMRS mode, and quick map planning, entering and selecting functions in GPS mode; Voice scrambler and vibration mode for silent calls; This product has a built-in highway map of the United States.

Please post a message below if you have questions about these walkie-talkies or other handheld radios. Also, learn about how police officers use codes for radio communication.


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