Live Sound Card Recording Desktop Singing Sound Card Mixer BT Wireless Plug and Play Intelligent Noise Reduction Built in Rechargeable Battery for Streaming Podcasting Recording Item Type: Sound Card Mixer Channel System: Double channel Output Sampling Rate: 44.1KHZ Sampling Bits: 16bit Main Chip: BP1048B2 Time of Use: 6 hours Digital Output: LT/RT, Stereo Earphone Output Power: 5 mW x 2 CH Knob: 7 piece Button: 25 piece Indicator: 102 piece Push Button: 3 piece USB and Live Interface: Digital communication charge/live accompaniment Interface: Accompaniment,musical instrument,earphone,headset condenser microphone Electricity Consumption: 220mA Charging Voltage: DC 5V Charging Current: 1A Battery Capacity: 1200mAh Product Size: 19.5 x 12.8 x 3.5 cm/7.6 x 5 x 1.4 inch Product Weight: 290 g/10.2 oz