Description: 16 channel walkie talkie: 16 preset channels. You can select any channel within the frequency range by rotating the knob on the 2-channel radio. Long distance communication: the walkie talkie can reach a distance of 3 miles in open areas such as rural areas, suburbs or the sea. If you are in a city or town, the walkie talkie can reach 0.6-1.2 miles in most cases. The actual distance depends on the obstacles in the current environment. Rechargeable: it is powered by rechargeable lithium-ion battery and can be used for a long time. The convenient USB charger can be charged through PC, vehicle charger, mobile power supply and most USB port power supplies. It supports 2-way charging, interphone charging and battery charging The battery is durable: under normal circumstances, the walkie talkie can be used for 8-96 hours when fully charged, and can be used continuously for 8-12 hours. The actual time depends on the frequency of use; Long battery life, theoretical life 3000h. Light and compact, suitable for a variety of scenes: small volume, light weight, strong and durable shell, fall and rain proof. This handheld two-way radio transmitter is suitable for hotel management. Specification: Frequency range: UHF400-480 (MHz) RF output power: 1 (W) Number of channels: 16) Working voltage: 3.7 (V) Frequency stability: 2.5 (PPM) Theoretical battery life: 3000 (H) Talk distance: 1-5km Battery capacity: 700mah Charging mode: USB charging Main material: ABS Product size: 8.2 x 3.2 x 1.2cm/3.22 x 1.25 x 0.47inch Product weight: 35g Package Includes: 1 Piece 16 Channels Mini Walkie Talkie 1 Piece Earphone cable 1 Piece USB charging cable 1 Piece Host sling 1 Piece Operation manual