Features: Dual Band with LCD Display Features two bands and LCD display, including VHF 136-174MHz (Rx/Tx), UHF 400-480MHz (Rx/Tx), with 128 channels to ensure strong penetration of radio wave for long communication distance. Wide Compatibility Widely used in the construction site, hotel, plant, bars, warehouse, supermarkets and for security, self-driving activities, campus communication, field survival, biking, hiking, road trip, camping, hunting, etc. 1800mAh Li-ion Battery/Safe & Eco-friendly Built-in large-capacity li-ion battery Features over-charge protection, over-discharge protection and circuit protection system, for safe use and environment protection. 5W RF Power for Wider Coverage 5W RF power is safe for you to use, while ensures the long service life of the battery and ensures wider coverage, and the transmission distance is based on the different environment. Small Size Design The multi-functional walkie talkie is designed in small size, and comfortable hand feeling, with detachable antenna for strong signal. Extra Functions Features LED flashlight, radio, USB charging and other functions, more practical. Specification: Type: FM Transceiver Brand: BAOFENG Model: BF-UV5R Color: Black Frequencyrange:65-108MHz(Only commercial FM radio reception) VHF: 136-174MHz (Rx/Tx) UHF: 400-480MHz (Rx/Tx) Memory Channels: Up to 128 Channels Frequency Stability: 2.5ppm Frequency Step: 2.5kHz/5kHz/6.25kHz/10kHz/12.5kHz/25kHz Antenna Impedance: 50 Operating Temperature: -20 to +60 Supply Voltage: Rechargeable lithium-Ion mAh 7.4V/1800 Mode of Operation: Simplex or semi-duplex Duty Cycle: 03/03/54min (Rx/Tx/Standby) RF Power: 4W/1W Type of modulation: FM Max. Deviation: 5kHz/2.5kHz(W/N) Spurious Emissions: