motorcycle bluetooth 5.0 headphones outdoor helmet earphone bluetooth stereo music and voice microphone soft cable earphone motorcycle helmet intercom headset universal helmet audio system blueear <b/><br/>absorbing the shortcomings of the first generation helmet headset, the factory r & d department designed a more reasonable and perfect second generation helmet headset<b/><br/> hm-1 helmet headphone is a convenient and useful products for motocyle and bike riders, a rider has no need take out the phones and press buttons to answer incoming calls, <b/><br/> as hm-1 helmet headphones is designed with automatically phone call answer function, hands by automatically answered after 3 ring tones. be safe while your driving.<b/><br/> <b/><br/>specification:<b/><br/> bluetooth version: 5.0+edr<b/><br/> frequency: 2.4026-2.480ghz<b/><br/> battery capacity:700mah<b/><br/> li-ion battery: 3.7v/700mah<b/><br/> bluetooth range: 20 meters<b/><br/> charging time: about 2-3h<b/><br/> working time: 50h<b/><br/> standby time: 500h<b/><br/> <b/><br/>package included:<b/><br/> 1*helmet bluetooth helmet headset<b/><br/> 1*charging usb cable<b/><br/> 1*user manual<b/><br/> 4*headphone velcro<b/><br/> q&a:<b/><br/><b/><br/>q1:can i connect a navigation device and a smart phone so i can listen to music from the phone and still hear navigation alerts from the nav. device?<b/><br/> answer:<b/><br/>hello,the headset only needs to be connected to a mobile phone. the mobile phone can play navigation or music at the same time. when the navigation comes to prompt tone, the sound of playing music will be smaller, the sound of navigation will be larger, and their simultaneous use will not be affected.<b/><br/> <b/><br/>q2:can i use the button adjust the volume up and down and change songs?<b/><br/> answer:<b/><br/>the motorcycle headset supports the volume adjustment and change songs, play/pause button is also power<b/><br/><b/><br/>q3:what should i do if there is a problem with the headset?<b/><br/>answer:<b/><br/>we promise 12 months of after-sales service, so buy with confidence, we will provide full after-sales service, and will completely protect your privacy<b/><br/>