Description Features: Motorcycle helmet headset adopts the BT5.0 chip, which has stable signal transmission, smooth connection, more power saving and no delay. Connecting the phone through BT can realize hands-free calls and playing songs, freeing your hands and improving riding safety. Adopt intelligent noise reduction technology to eliminate noise and echo, ensure calls quality and improve voice clarity. Built-in large-capacity battery, low power consumption and long endurance, continuous talk time up to 20 hours. 40MM speakers, the bass is thick and not boring, the intermediate frequency is clear, and the treble is loud, giving you a nice musical experience. Exquisite appearance, smooth body lines, can effectively reduce wind resistance. IP67 waterproof rating, no fear of rainy days. Specifications: Color: Black/ Red/ Green(optional) Material: ABS BT Version: BT5.0 Transmission Distance: 10 Meters Working Current: 30mA Battery: Built-in 600mAh Lithium Battery Waterproof: IP67 Item Size: 88 * 28mm/ 3.5 * 1.1in Package Size: 140 * 110 * 40mm/ 5.5 * 4.3 * 1.6in Package Weight: 200g/ 7.1oz Packing List: 1 * Headset 1 * Hard Microphone 1 * USB Cable 1 * Mount 1 * Adhesive Tape 1 * Manual