"Product size: 200*107*79mm
Packing size: 220*176*85mm, 0.9kg
Carton size: 460*450*375mm,20pcs/ctn,G.W:19kg
Speaker model: Full frequency speaker 4 ohms 3W*2
Speaker size: 1.5 inches
Rated impedance: 4Ω±15%
Rated power: 3W
Frequency range:F0-20KHZ
Characteristic sensitivity:84dB±2dB
Resonance frequency: 400HZ±20%
Harmonic distortion: 5%
Power supply (adapter): DC 5V/1A
Battery: Built-in 3.7V/2400mAh (the battery can be used for 3 to 3.5 hours when the power amplifier is turned on)
Power indicator (LED): power on - white light, charging - red light, low battery status - prompt sound 2 minutes/time
Charging time: fast charging (power off) 1.5-2 hours,
Slow charging (charging and discharging at the same time, the power amplifier is turned on moderately) 3-4 hours
Charging interface: TYPE-C interface
Bluetooth speaker function: Yes
USB flash drive: yes
Card reading: TF card
Built-in battery playback: yes
Play while charging: Yes
Low power indicator: Yes (beep)
Supported audio formats: MP3 WAV WMA FLAC APE
Sound adjustment: volume adjustment
Lighting control: Yes
Function keys 14 keys
Bluetooth switch: Bluetooth/FM
Bluetooth playback operations: play pause, previous song, next song"