Item Specifics Frequency Range: 20Hz-20KHz Charging Time: 2 hours Product Weight: 29g Total Size: Approx. 16.4*13.1cm*5.7cm / 6.45*5.15*2.24in Total Weight: Approx. 216g / 7.16oz Colour: Black Brand: Bone Conduction Sensitivity: 102+3DB Type: Open ear Waterproof Rating: IP 56 Wireless Range: 10 meters (40 feet) BT Version: 5.0 Material: Titanium frame + ABS + skin-friendly silica gel Model: DG08 Way to Wear: Hanging ear type Connectivity: Bluetooth Standby Time: 10 days Headset Battery Capacity: 180 mAh Charging Input: 5V-TA Playing Time: 5 hours (standard volume) Description - Features: Bone Conduction Earphones: Transmit sound to the auditory nerve through the bones to protect the eardrum from damage. Perfect Sound Quality: Wireless bone conduction headset offers high-fidelity music. Charging Magnetic Design: Much easier than traditional charging way. IPX5 Waterproof Design: Can effectively prevent sweat infiltration. Born for outdoors and sports. Suspension Design: Hanging behind, protect the ears. Wear long time without pain. More comfortable and healthier. BT 5.0: 10 meters stable continuous connection. Powerful Battery: Work lasting for 5 hours. Package List: 1 * Bone conduction earphone 1 * Manual 1 * Soundproof earplugs 1 * USB charging cable