product parameters
Battery type: 3.7v 140mAh lithium battery
Bluetooth chip: CSR8635
Transmission distance: 10 meters.
Working frequency: 2.402-2.480GHz
Audio / noise ratio: 90dB
Response Frequency: 80-5000hz
Charging input: Micro USB DC 5V/0.5=1A
Play time: about 6 hours.