RETEVIS Two-segment Walkie Talkie, US Plug 1. A / B band independent operation (UV UU VU VV) 2. 128 groups of channs 3. 0-9 lev VOX optional 4. With radio and 25 radio stations storage 5. With busy lock, scanning, monitoring, time-out timer (TOT) keyboard lock, emergency alarm, power saving and other functions 6. Built-in LED flashlight, easy to use 7. Low battery warning 8. PC software programmable 9. LCD display, clear at a glance 10. Rated voltage: 7.4V DC +/- 10% 11. Output power: 5W 12. Battery capacity: 1400mAh 13. Frequency range: UHF: 400-520MHz + VHF: 136-174MHz 14. Frequency stability: +/-2.5ppm 15. High/low TX power optional: VHF: 5W / 1W UHF: 4W / 1W 16. Frequency step: 2.5 / 5 / 6.25 / 10 / 12.5 / 25kHz 17. Carrier resistance: 5ppm 18. Size: 110x58x32mm (non-antenna) 19. Weight: about 200g 20. The product includes: 1*portable radio, 1*antenna, 1*lithium-ion battery pack, 1*lithium-ion charger, 1*bt clip, 1*earphone, 1*sling, 1*user manual