Specification: Item Type: Wireless Over Ear Headset_x000D_Model: OY528_x000D_Material: ABS_x000D_Color: Black and Red_x000D_Bluetooth Version: 5.0_x000D_Bluetooth Distance: Approx. 10m / 33ft_x000D_Function: Bluetooth Function, MemoryCard Function, 3.5mm Audio Cable Function, Radio Function_x000D_FM Frequency Band: 87.5-108MHz_x000D_Battery Capacity: 1200mAh Built-In Lithium Battery_x000D_Working Frequency: 2.402GHz-2.480GHz_x000D_Audio Range: 20Hz~20KHz_x000D_Snr Sensitivity: 108dB3dB_x000D_Impedance: 32_x000D_Working Voltage: 3.7V~4.5V_x000D_Charging Voltage: 5V 1A_x000D_Charging Time: 2-3 Hours_x000D_Working Time: 40 Hours_x000D_Standby Time: 260 Hours_x000D_Applicable System: For Android, for IOS, for WINDOWS Features: 1There are touch buttons on the outside of the headset. Start, pause, change song, answer/reject call, increase/decrease volume. 2Two large 40mm drivers adopt surround sound design to reproduce a clear and balanced sound environment. 3High-definition omnidirectional microphone with noise reduction function to ensure clear voice quality in voice call mode. 4Folding design, can save space, can be easily put in a backpack or bag for easy carry. 5Support Bluetooth function, memory card function, 3.5mm audio cable function, radio function. 6High compatible with mobile phones, tablets, laptops, smart TVs with Bluetooth function, etc. PackageList: 1 x Headphone 1 x USB Cable 1 x 3.5mm Audio Cable