Features: *Clearer talking and longer range, stable performance. *16 channels adjustable, 400-470MHz working frequency. *Noise Reduction, Saving, Flashlight. *Time-out Alarm, Voice Prompt, Voice Operated Transmission. *Built-in 2PCS for your normally talking use. Specifications: Frequency: UHF 400-470MHz Channel Capacity: 16 Power Consumption: 5W Capacity: 3.7V 1500mah Working Distance: 1-6Km Size: 115*60*33mm Package List: 2 * Transceiver 2 * Antenna 2 * 2 * Belt Clip 2 * EU Charger 2 * Earphone 2 * String 1 * English Manual