Specification: Item Type: Bluetooth Headset_x000D_Material: ABS_x000D_Bluetooth Version: 5.0_x000D_Speaker: Bone Conduction Vibrator Speaker_x000D_Built in Polymer Lithium Battery: 170mAh_x000D_Bluetooth Protocols: A2DP, AVRCP, HSP, HFP_x000D_Transmission Distance: 15 Meters (Unblocked)_x000D_Support Functions: Music Play, Pause, Call Answer, Reject, LOS Battery Display, Automatic Reconnection, Call Sound Assistant, Caller Number Features: 1[Bone Conduction Earphones] The earphones use bones to transmit sound, do not hurt the eardrum, and are more comfortable and healthier. 2[Daily Use] The bluetooth stereo earpiece is suitable for everyday use, anytime, anywhere, and enjoy life in peace. 3[Ergonomic Design] The bluetooth earpiece adopts ergonomic design, freeing hands, comfortable, and does not break away from jumping. 4[Universal] The bluetooth bone conduction earbuds can be worn on both ears, rotate left and right, and are universal for both ears. 5[Scope of Application] The wireless earpiece is a gospel for the deaf, a bone conduction assisted listening Bluetooth headset. PackageList: 1 xBluetoothEarpiece 1 x Manual 1 x Charging Cable