RETEVIS RT1 10W UHF 400-520MHz 16CH Handheld Walkie Talkie, EU Plug 1. High power 10W, longer communication distance 2. High capacity battery, long standby time 3. Scrambler ensures communication confidentiality 4. Two antennas (high-gain antenna and common antenna) to increase the distance 5. Frequency range: UHF: 400-520MHz 6. Channel capacity: 16 7. Output power: High: 10W Low: 5W 8. Working voltage: 7.2V DC 9. Antenna impedance: 50 ohms 10. Working temperature: -20~+50 degrees Celsius 11. Frequency interval: 12.5kHz 25kHz 12. Battery capacity: 3000mAh 13. Modulation noise: less than -40dB 14. Modulation distortion: less than 55 15. Frequency stability: 5ppm 16. Current: less than or equal to 2600mA 17. Audio response: +6.5—-14dB 18. Adjacent channel power: greater than or equal to 65dB 19. Intermediary sensitivity: 8-12mv 20. Standby time up to 260 hours 21. VOX sensitivity adjustable 22. Voice companding, squelch adjustment, receiving alarm, time-out timer (TOT), scanning, end tone elimination and other functions 23. Dimensions (not including antenna): 133x59x36mm 24. Weight (including battery): 272g 25. The package contains: 1x portable radio, 2x antenna (high gain antenna and common antenna), 1x polymer lithium ion battery pack, 1x adapter, 1x charger, 1x belt clip, 1x user manual