Frequency range: VHF: 136-174 MHz; UHF: 400-420; 450-470 MHz. Channel capacity: 16. Channel spacing: 25/12.5 KHz. Operating voltage: 7.4 V. RF power output: 5 W / 2 W (VHF); 4 W / 2 W (UHF). Battery: 2000 mAh (Li-ion). Battery life: over 14 hours. Operating temperature: -4° ~ +122°F. Dimensions: 4.68 x 2.16 x 1.30 inches. Weight: 9.70 oz.