Awei AT7 Stereo Wireless Bluetooth Headphone

Specification
# Feature Details
1 Warranty 6 Month Official Warranty
2 Battery Upgraded Li-polymer battery with 600mAh capacity
3 Battery Life Longer battery life; Play time ≈70h, Call time ≈40h
4 Charging Charging time 2.5h via Type-C interface
5 Storage Support Micro-SD card supported
6 Bluetooth Version 5.4
7 Bluetooth Protocols a2dp 1.3.2, avctp 1.4, avdtp 1.3, avrcp 1.6.2, hfp 1.8, spp 1.2, rfcomm 1.1, pnp 1.3, hid 1.1.1, sdp core 5.3, l2cap core 5.3
8 Audio System Channel system: stereo
9 Speaker Horn diameter: 40mm, Horn impedance: 32Ω, Horn sensitivity: 121±3dB
10 Transmission Best transmission distance: <1m, Maximum transmission distance: 10m, Bluetooth operating frequency: 2.402GHz~2.480GHz
11 Design Wearing method: head-mounted
12 Manual and Accessories User manual in Chinese and English; Accessories: USB charging cable, user manual