Usams Jc Series Stylish Bluetooth Wireless Sports Headphones Black

Material: ABS+TPUBT Version: 5.0Calling Time: About 6hPlaying Time: About 5h (80% Volume)Stand-by Time: About 300hMicro Input:DC-5V/100mA50mABattery Capacity: 120mAhCharging Time: About 1.5hMIC Sensitivity:-42dbFrequency Range:20Hz~20KHzSpeaker Impedance: 3215%Speaker Sensitivity: 843dBSNR: 85dBConnection Distance: 10m-15mCompatibility: For Android/ Apple devices with BT functionAccessory: Charging Cable *1Features:1.Open-Ear design, protecting your hearing.2.Surround directional sound field, immersive sound.3.BT 5.0, smart switching of audio/phone call.4.IPX5 water-proof, comfortable to wear.