Supports 3-party Intercoms Connect mobile phones at the same time,The battery level of the headphones can display on the phone . Support voice assistant and control the basic functions, such as answering calls, playing music, etc. Support auto-answering of calls, if you don't want to answer, you can press the button to reject.	Built-in large-capacity battery, low power consumption, long endurance ISAMTO helmet bluetooth headset supports 30 hour continuous working and 300 hour stand-by on a single charge. Normal Type-C port charging fast and convenient. It can also be charged while using, need not to worry about the charging problem while long ride travelling.	IPX67 waterproof & Dustfree IPX67 waterproof design of this outdoor headphone help you handle all weather conditions. Easily button control to play/ pause music, previous/next song, adjust volume, reject or answer calls. Scientific design makes it perfectly fits most open face, modular and full-face style helmets.

PACKAGE INCLUDESHelmet Intercom x1
Hook and LoopFastemer x1
Type-Ccharging cable x1
Velcro clip x1
Changeable hard mic andsoft mic speakers x1
Hex key x1
Back dlip x1
User manual x1
Velcro for speakers x4
Other installation accessories shown in the package