Bluetooth Headset Support Bluetooth 5.0 and fast connectivity. WATER & SWEATPROOF - Laboratory certified IPX4 rating. Ergonomic in-ear design, with removable/sterilizable silicone pads in S/M/L sizes. Comfortable neck strap with remote control: volume and multi-function controls. HYPERBASS with quadruple speakers for maximum sound quality. Wireless range: 10m (30ft) Built-in high sensitivity microphone for hands-free phone calls. 4 x 6 dynamic speakers with audio frequency range: 20Hz-20,000Hz With voice assistant activation (e.g. Siri / Google Assistant). Extra long battery life: about 15 hours play/talk time, 200 hours standby time. Quick recharge time of 2 hours. Charging port: Micro USB (USB charging cable with leather belt included) Ergonomic featherweight earpiece with neckband design. Device Weight: 24.5g Accessories Included: Braided USB Cable, Carrying Bag, Velcro Belt, Silicone Pads x 3 Pairs (S,M,L)