Non-in-ear design to protect hearing, safety and health. 6D panoramic surround sound, high fidelity audio output. IPX4 waterproof design, water and sweat protection. Safe on the road with awareness of surroundings. Titanium alloy memory wire prevents breaks and bends. 230mAh large-capacity polymer battery with long battery life of over 6 hours. Built-in microphone for wireless HD calls. Inductive touch, easy to operate. Bluetooth: QCC3003 5.0 EDR Connection distance: 10M Microphone: anti-interference microphone, -38dB Sensitivity: 84dB Impedence: 10Ohm Frequency range: 20-20kHz Battery capacity: 230mAh polymer battery Talk time: 6 hours Standby time: 360 hours -Charging time: 2 hours Weight: 27g What's in the box 1X Open Ear Solo Headset, 1X USB Charging Cable, 1X User Manual