Product Name: Air P9 Pro Max Bluetooth Headphone Bluetooth power supply :2.402-2480GHz
Input voltage :3.7-5V DC
Transmission distance: 10m
Bluetooth version: V5.1
Battery: 150mAh
Headset working time: about 10h
Charging time: about 2 hours
Product color: Black
Gross weight: 260g
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