LOLPALONE Battery: Built-in 3.7V/1800mAh (usable time about 8 hours)Power indicator (LED): Power on: white light; Charging: red light; Low battery status: 2 minute beepsCharging time: (power off) about 2 hoursCharging interface: TYPE-C interfaceSound card functionBuilt-in battery use: YesUse while charging: YesLow power indicator: YesSound adjustment: YesSound effect button: 1 buttonBluetooth switch: supportFunction keys: 13 keysCondenser microphone input: 1 channel (3.5 ports)Headset output: 1 channel (3.5 ports)Headphone output: 1 channel (3.5 port)Live broadcast interface: 1 channel (3.5 port)Dynamic microphone input: 1 channel (XLR female socket)48V input: 1 channel (XLR female socket)OTG interface: 1 channel (TYPE-C port)Analog audio output: /RT, stereoDynamic range 1kHz: ≧105dBCrosstalk: ≧-106dBSignal-to-noise ratio: ≧85dBOutput level (Vrms): Vrms (1.0~2.0V 10kR)Headphone output power: 5 mW x2CHFrequency response: 5MHz (Less than-3dB)Material: abscolour: A-WhitePackage Contents: 1 x TYPE-C data cable1 x double TYPE-C OTG cable1 x 4-section audio cable1 x sound cardOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.