Product descriptionOpen-ear design helps you stay alert to your surroundings, avoid danger and meanwhile enjoy music. No eardrum damage, healthy and eco-friendly.The lightweight and comfortable wireless stereo headphones is the safest alternative to traditional sports headphones and earbuds.Features:1. using high-quality materials, bluetooth chip, and CVC call noise reduction technology, and in line with the safety fit design.2. Simple and convenient operation, you only need button to achieve：Answer / Reject phone ,Play / Pause ,Switch songs3. Multifunction Button. Easy controls to play, pause, skip, and answer calls.Material: ABS+PCBluetooth protocol: 5.0Charging voltage: DC-5VWorking frequency: 20HZ-20KHZChannel: stereoUsage: hanging ear typeTransmission range: 10mFunction: call function, musicPlaying time: about 9hCharging time: about 2hWhat's Including in Box?1*Bone Conduction Headphone1*USB Cable1*User manualThank you very much for your trust and support, and I wish you a happy life.