The lightweight and comfortable wireless stereo Bone Conduction Headphones is the safest alternative to traditional sports headphones and earbuds. It has advanced bone conduction technology,open earbud design and secure fit design,and equipped with Bluetooth V5.0 chip, and call noise reduction technology.Can provides quality music playback and clear calls. Bone Conduction Headphones is designed with athletes in mind, sweat-proof, safe fit, so you can hear the surrounding environment - a perfect sports Bluetooth Wireless Headphones.Product Specification:Connection Technology: Bluetooth WirelessBluetooth Version: V5.0Transmission Distance: 33 footWaterproof Level: IPX5Built-in High-definition MicrophoneWireless Profiles: A2DP/HFP/HSP/AVRCPFrequency Range: 20Hz-20KHzStandby Time: Around 480 HoursCharging Time: Around 2 HoursPlaying Time: Around 6 HoursBattery Capacity: 200 mAhSize: 5.7 * 1.9 * 0.7 InchWeight: 1.23 OuncesPackage includes:1 x Bone Conduction Headphones1 x Charging Cable1 x User's Manual