Product parameters:
Bluetooth version: Jerry V4.0
Battery Type: 18650 polymer battery
Battery capacity: 2000mA
Use time: about 3.5 hours
Output power: 4 euro * 5W
Frequency response: 20Hz-20KHz
Transmission frequency range: 2.402G-2.480G
Signal to noise ratio: ±80db
Transmission distance: 8-10m
Charging type: microUSB 5V/1.5A
Size: BS28B: 550*50*50mm , BS28A: 330x50
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