"Speaker model: Full frequency speaker 4 ohms 20W
Speaker size: 2.5 inches
Rated impedance: 4Ω±15%
Rated power: 20W
Frequency range:F0-20KHZ
Characteristic sensitivity:84dB±2dB
Resonance frequency: 400HZ±20%
Harmonic distortion: 5%
Power supply: DC 5V/1A
Battery:Built-in 3.7V/2000mAh
Battery life: 3 to 3.5 hours
Power indicator (LED): power on - white light; charging - red light;
Low battery status: beep for 2 minutes/time
Charging time: fast charging - 1.5-2 hours, slow charging - 3-4 hours
Charging interface: TYPE-C interface
Supported audio formats: MP3 WAV WMA FLAC APE
Sound adjustment: treble and bass adjustment; accompaniment, reverberation; microphone volume adjustment; speaker volume adjustment
Lighting control: Yes
Audio switch: yes
Function keys 14 keys
Sound effect button: 2 buttons
Special effect keys: 3 keys
Bluetooth switch: support
Bluetooth playback operations: play pause, previous song, next song
Card reading: TF card
Condenser microphone input: 1 channel (3.5 ports)
Headphone output: 1 channel (3.5 port)
Live broadcast interface: 1 channel (3.5 port)
OTG interface: 1 channel (TYPE-C port)
Charging interface: TYPE-C port
Packing List: TYPE-C data cable*1, four-section audio cable*1, TYPE-C charging cable*1, dual-band wireless microphone*2
Product size: 206*136*162mm
Packing size: 237*134*185mm, 1.15kg
Carton size: 560*258*390mm,8pcs/ctn,G.W:10.2kg"