Playtime: Hammer Twist neckband with mic comes with a battery backup that supports upto 14 hours of music video playtime and talktime and standby time upto 340 hoursFast Pairing: Connect quickly and easily with fast pairing technology of Hammer twist bluetooth neckbandsHD Sound Quality: Elevate your audio experience with premium HD sound quality of Hammer twist bluetooth neckband earphonesBluetooth v5.1: It comes with bluetooth v5.1 with strong and stable connectivity, 10mm dynamic sound drivers and built-in mic that deliver an immersive audio experience on your wireless neckband and Transmission radius of 10mLightweight & Comfortable: Hammer neckband is designed to be lightweight for comfortable usage for long hours Sweat-resistant and hassle-free: Experience music without compromise with neckband earphones IP54 sweat-resistant technologyType-c charging: Say goodbye to slow charging with bluetooth wireless neckband Type C's lightning speed MFB controls: Experience ultimate convenience and switch Effortlessly between music, calls, and more with the multifunctional buttons on your neckband