Bluetooth version: 6.1. Bluetooth working frequency: 2.402GHz-2.480GHz. Support Bluetooth protocol: A2DP/AVDTP/AVRCP/RFCOMM/HFP/HSP/SPP/HID. Channel: Bilateral Stereo. Bilateral stereo design, sound quality and timbre are like live listening.
Black tech that is ear-friendly: latest bone conduction and air transmission technology for effective sound fidelity. Transmission Technology: Bone Conduction & Air Transmission. Bluetooth 5.3 Earbuds Active Noise Canceling In-Ear Wireless Headsets with Mic.
Functions: BT, FM, TF card, USB, TWS. Bluetooth Version: V5.3. Bluetooth Connection Distance: <10m. Style: Portable. Failure to provide one will result in delays. 1 X TYPE-C Charging Cable. No responsibility for any custom duty.