1、Clear Sound Quality: Built in intelligent noise reduction chip, wind noise, engine noise and other environmental noises are reduced through windproof cotton. The high volume speaker helmet headset provides you with high speed and clear voice and stereo music. 2、Suitable For Riding: With 2 detachable clips, which can be clipped to the helmet. If you use a full helmet in winter, put the earphones directly in the helmet and do not use clips. If you use a half helmet in summer, clip the clip to the outside of the helmet and you can use it easily. 3、Intelligent Voice Reminder: Built in 250mAh rechargeable battery, charging for 2h can provide 15h of continuous playback time, and a short beep will sound when the battery is low. Effective distance 10‑30m / 33‑98ft, hands free calls, listen to music and GPS voice guidance. 4、New Upgrade Design: Buckle design makes it easy to disassemble and assemble. It is suitable for any full helmet and most half helmets that can cover the ears. The helmet headset provides good waterproof and sweatproof effects, making your outdoor riding more exciting. 5、Multiple Functions: When listening to a song, you can control the upper and lower songs, increase or decrease the volume, and pause the playback. It can also effectively implement functions such as hands free answering and hanging up, and automatic callback of incoming calls. Item Type: Earphone Material: ABS Model: M6 Colour: Black Function: Sound Transmission Scope of Application: Most smart devices with Bluetooth Bluetooth Version: Bluetooth 5.0 Charging Voltage: 5V Built In Battery: 250mAh Polymer lithium battery (included) Working Distance: 10m / 33ft (barrier free up to 30m / 98ft) BT Protocol: A2DP/L2CAP/HFP/AVRCP/AVDTP/AVCTP One for Two: Can connect 2 mobile phones 1 x Headphone 1 x Charging Cable 2 x Headphone Clip 2 x Headphone Holder Fixing Accessories 4 x Hook&Loop 4 x Long Screw 4 x Short Screw 8 x Nut 1 x Manual