Features: Brand new and high quality Applying upgraded Bluetooth-comaptible 5.1 chip, motorcycle bluetooth-comaptible headset can be quickly-paired within 1s when entering the pairing state. It supports 2 riders to connect and talk at the same-time. The maximum intercom distance can reach 800m. Helmet bluetooth-comaptible headset adopts advanced noise reduction technology to eliminate the noise of call, so that the sound you hear is more clear and stable, with 3D stereo sound effect. You can listen to enjoyable music and road conditions while riding. Waterproof grade IP65, freely use in rainy day. suitable for mobile phones, MP3, intercom and other bluetooth-compatible devices. Built-in large capacity rechargeable battery, motorcycle helmet intercom only takes 2.5h to fully charge with type-C cable. The standby-time can reach 260h and phone talking-time up to 24hours, which can meet the needs of long-time cycling calls. Suitable for most full-face helmets, half helmet and open helmets, and the installation is quite simple Keep your riding safe and comfortable. Specifications: Material:ABS Packing size: Approx.15.5x10x6cm/6.1x3.93x2.36inches Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Motorcycle Intercom 1x Earphone 2x Helmet Clip 4x Loop fasteners 1x Charge Line 1x Instructions