Feature: 1. One‑key frequency measurement, wireless reception, fast decoding, and automatic detection. 2. After the frequency measurement is completed, the frequency counter and the walkie‑talkie can ensure that the frequency is accurate. 3. Frequency meter can test frequency, sub‑tone, frequency hopping, encrypted frequency point. 4. The frequency meter can communicate with the walkie‑talkie by pressing the PTT button to detect the accuracy. 5. The frequency meter can measure the frequency of the walkie‑talkie and is very useful. Specification: Item Type: Walkie Talkies Frequency MeterMaterial: ABS ShellColor: As Picture ShownSize: Approx. 7.5x6x2cm/3.0x2.4x0.8inWeight: Approx. 108.0g/3.8ozBuilt-in Lithium Battery: 500 mAh Language Voice: Chinese and English voice Interface Display: Switch between Chinese and English How to use:1. Turn on the walkie-talkie. Press and hold the power button for 3 seconds to turn on the frequency meter 2. Press the frequency measurement button on the frequency detector and wait for the data to be received 3. Press and hold the transmitter button on the walkie-talkie for 3 seconds, and the frequency tester will receive the data and display the video as complete. 4. The frequency tester can communicate with the walkie-talkie by pressing the PTT button to detect the accuracy of the frequency and sub-tone. Package List: 1 x Walkie Talkies Frequency Meter1 x USB Charging Cable