Summary:

• Bluetooth version: Bluetooth V5.3
• Speakers specification: $10mm
• Frequency response: 20-20KHz
• Output power: 20MW
• Transmission distance (barrier-free) :10m
• Signal-to-noise ratio: 85dB
• Distortion: 1 percent
• Battery specification: 3.7V220mAh
• Charging time: 1-3 hours
• Music time: about 20hours/50 percentvol
• Standby time: about 500 hours
• Sensitivity of microphone: -42dB #3dB
• Support L2CAP/A2DP1. 2 (AVCTP1.3 /AVDTP1.2/ AVRCP1.3)