Baofeng UV-9R PRO Dot Matrix LCD Screen IP57 Waterproof Handheld Analog Walkie Talkie 1. Frequency range: VHF144-148MHz, UHF430-440MHz 2. Receiving sensitivity: about 0.25UV 3. Working voltage: DC 7.4V 4. Channel spacing: 25KHz (wideband), 12.5K (narrowband) 5. Frequency stability: -+2.5ppm 6. Transmitting current: about 1.5A 7. Signal-to-noise ratio: about 45dB 8. Maximum audio power: 1W 9. Receiving current: about 380mA 10. Number of channels: 128 groups 11. The dot matrix LCD screen is equipped with Chinese and English voice prompts, the interface is friendly, and it is more convenient to control and select various functions 12. Support high, medium and low power adjustment to meet the power requirements of users at different call distances, and save energy and power 13. Voice-activated transmission function (VOX) allows users to free their hands and talk normally without pressing the PTT button 14. Emergency alarm, ANI identification and other functions can be performed through DTMF 15. Equipped with relay pilot and reverse frequency functions used in cluster networks to meet the setting requirements under various complex conditions 16. Menu item keyboard digital direct selection function, transmit and receive frequencies can be directly input 17. Each channel can set different CTCSSDCS and DTMF signaling to reject unnecessary calls from other radio stations 18. IP57 waterproof design, full keyboard supports manual frequency input, side keys can be customized