Hign-concerned Chemical:None Model Name:Helmet headset Material Type:Plastic Origin:Mainland China 1.Made of premium material, it is sturdy and durable. 2.The headset is designed with mic, clear stereo sound quality. 3.Great for motorcycle Bluetooth device. 4.It is universal for E1 Interphone. 5.Fine workmanship, can be used for long time. It is a perfect replacement for your damaged one. Name:Helmet headset With microphone colour: Black Material: Plastic Note: This product does not include the Bluetooth host Type:Half-Helmet Package Contents: 2pair x Helmet headset With microphone Only the above package content, other products are not included. Note: Light reflection 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.