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Features: True Bone Conduction Technology-- using advanced bone conduction technology to transmit audio to your inner ear through cheekbone vibration, which can prevent the eardrum from being damaged by wearing the earphone for a long time, healthier and safer.Bluetooth V5.3 -- The latest buetooth ..

Description:Standard：bluetooth 5.3Profiles：bluetooth low energy                 Dual-mode bluetoothFrequency Band：2.402G-2.480GSensitivity：-86dbm@.01%BERRF TX Power：6dbm(Class)Supply Voltage：5V DC(MAX5.75V)Working Current：Depends on profiles, 22mA typical'Standby Current(Connected)：0.4uAOperating E..