BAOFENG BF-1904 Outdoor 10km Distance Handheld Intercom UHF 400-470MHZ Walkie Talkie - EU Plug ?Long-Distance Communication: 10W power handheld walkie-talkie for outdoor use,providing up to 10km range ?Large Capacity Battery: Equipped with a high-capacity 4200mAh lithium battery for long usage time ?Energy-Saving Feature: Automatically activates a power-saving mode after 5 seconds of inactivity to conserve battery life ?High volume: The sound quality is loud and clear,suitable for property construction sites,outdoor warehouses and parking lots,etc. ?Specifications: ?Size (without antenna): 137*60.5*39mm ?Waterproof level: life waterproof (IP54) ?Intercom distance: 1-10KM ?Display screen: None ?Working mode: single frequency ?Transmitting power: 10W ?Battery voltage: 7.4V ?Battery capacity: 4200mAh ?Frequency band: U band ?Frequency range: 400-470MHZ ?Memory Channels: 16 Groups ?Material: ABS Package included: ?1 x Walkie Talkie ?1 x Charger ?1 x Back Clip ?1 x Lanyard ?1 x Battery ?1 x Antenna ?1 x English User Manual ?Other items not included