Excellent bone conduction headphones：This bone conduction Bluetooth headset uses the latest Bluetooth chip to enhance sound transmission, faster pairing, more stable connection.MAINTAIN CONTACT WITH THE OUTSIDE WORLD：Listen to music without blocking your ears, also can listen to surrounding sounds, giving an awareness of what is going on around you, hear traffic coming or ringing bell when running, cycling or driving.Impressive sound：excellent sound, coupled with a composite diaphragm, Bluetooth neckband headset can provide incredible sound, and has a wider sound field and high-resolution sound quality.ERGONOMIC DESIGN COMFORT：bone conduction Bluetooth headsets, lightweight design to bring you an excellent sports experience, whether in the gym or outdoors, suitable for use in sports such as running, cycling.Lightweight body design, with liquid silicone ear hooks and memory titanium steel, it is stable to wear and does not fall off during exercise.Product specifications:Name: Bone Conduction Bluetooth HeadsetBluetooth: version 5.0Body weight: 23gBluetooth distance: 15 metersBattery capacity: 150mAhWaterproof rating: IP55Battery voltage: 3.7VShell material: PC+ABSStandby time: 10 daysSpeaker impedance: 8Ω+3dBPlaying time: 12 hours (standard state)Memory wire: Nitinol steel wireCharging method: Micro USB interfaceFrequency response: 80-20kHZAppearance size: 133*97*46mmCharging input standard: DC 5V==- 500mAMicrophone sensitivity: -42±2dBCharging time: 2 hoursUse: running, cycling, fitness, hiking, rock climbing, driving;Package contents:1 * Bone conduction headphonesWelcome to the shop. I wish you a happy shopping and a good mood every day. If you have any questions, you can contact us We will reply to you within 24 hours!