Specifications: Model: BF-888S Antenna Impedance: 50ohm Battery type: Li-ion battery,1500mAh Battery Life: About 8 hours. Rated Voltage: DC 3.7V Output power: <5W Working temperature: -30°C~60°C (-22℉~140℉) Dual band or single band: single band Dual frequency or Single frequency: Single frequency Frequency Range: UHF: 420-450MHz Memory Channel: 16 Functions: CTCSS/DCS, Led torch, Low battery alarm, Power saving, voice prompt, PC software programmable Dimension(L×W×H): 60×33×115mm (Not counting antenna) Weight: 180g Antenna Type: Compatible with SMA-Female Antenna Earpiece & Programming Type: Compatible with K-plug earpiece/cable