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D etails：
Connection method: Bluetooth connection
Interface type: USB
Battery capacity: 1500mAh 3.8V
Signal to noise ratio: 77dB
Power supply mode: built-in lithium battery
Playing time: 8 hours
Bluetooth protocol: 5.0
Effective distance: 10 meters
Material：
Shell material: metal
Size:
Appearance size: 168*58*24.5mm
Weight：
Product weight: 267g
