Bluetooth version: 5.0Input voltage: DC5VSpeaker: 32ohm 1W Φ40mmOutput power: 200mwTransmission distance: 10MFrequency response: 200Hz-20kHzWorking current: about 100mAColour:blackMaterial:plasticPackage Contents:1 x Radio HeadphoneOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.