The BlitzWolf Bw-BTS9 Bluetooth Bone Conduction Earbuds are designed for those who love music on the go.SPECIFICATIONSModel: Bw-BTS9Wearing Type: Open-earMicrophone: YesVolume Control: YesBluetooth Version: V5.3+EDRSupported Profiles: Hsp/Hfp/A2DP/AVRCPTransmission Distance: 33 feet (10m)Horn Sensitivity: 86 3dBFrequency Response: 180hz-16000hzBattery Capacity: 125mAhCharging Time (h): 2hMusic Time: 6-10hBuilt-in Memory: 32GBWaterproof: IPX8PACKAGING INCLUDES1 BlitzWolf Bw-BTS9 Bluetooth Earbuds Bone Conduction Earphone1 Charging Cable1 User Manual