Features: Equipped with two frequency bands and LCD display, including VHF 136-174 MHz (Rx / Tx), UHF 400-520 MHz (Rx / Tx). Up to 128 channels to ensure strong radio wave penetration for long communication distance, suitable for use in 1-6 km for urban areas, 2-8 km for suburbs, 2 -10 km for mountainous areas and 3-12 km for plains. The multifunctional walkie talkie is designed in small size and comfortable hand feeling, with detachable one for strong signal. IP67 level waterproof and dustproof, shockproof and wear-resistant, no fear of any harsh environment. Built-in 8000mAh large capacity Li-ion battery includes overcharge protection, over-discharge protection and circuit protection system, for safe use and environmental protection. Widely used in construction sites, hotels, factories, bars, warehouses, supermarkets, for self-driving activities, campus communication, field survival, cycling, hiking, road trips, camping, hunting, etc. Specification: General: Brand: BAOFENG Model: UV-9R Plus Color: Black Frequency Range: 65 MHz-108 MHz (commercial FM radio reception only) VHF: 136 to 174 MHz (Rx / Tx) UHF: 400-520 MHz (Rx / Tx) Memory channels: up to 128 channels Frequency stability: 2.5 ppm No frequency: 2.5 kHz / 5 kHz / 6.25 kHz / 10 kHz / 12.5 kHz / 20 kHz / 25 kHz Impedance of the ne: 50 Operating temperature: -20~60 Battery: Li-ion battery, DC7.4V / 8000mAh Receiving consumption: 380mA Transmission consumption: 1.4A Working mode: Simplex or half duplex Duty cycle: 03/03/54 min (Rx / Tx / Standby) Transmitter: RF power: 5W / 1W Modulation type: FM Maximum deviation: 5 kHz / 2.5 kHz (W / N) Spurious radiation: