Specification: Item Type: Wireless Headset_x000D_Model: OY631_x000D_Material: ABS_x000D_Colour: Black_x000D_Bluetooth Version: BT5.0, Compatible with BT4.2,BR/EDR_x000D_Bluetooth Pairing Name: Wireless Headset_x000D_Bluetooth Distance: Approx. 30m / 98ft_x000D_Compatible Protocol: A2DP/AVRCP/HSP/HFP_x000D_Speaker Specifications: 40mm/20mW/32_x000D_Headphone Battery Capacity: 300mAh (Built-In Lithium Battery)_x000D_Sensitivity: 108dB3dB_x000D_Frequency Response Range: 20~20KHz_x000D_Headphone Charging Time: 2~3 Hours_x000D_Charging Voltage: DC 5V 1A_x000D_Talk Time: About 40 Hours_x000D_Standby Time: About 260 Hours_x000D_Compatible System: For IOS, for Android, for X OS, for WINDOWS Features: 1Bluetooth 5.0, easily paired with mobile phones or any devices that support Bluetooth, compatible with most devices. 2The head?mounted design and skin?friendly ear cushions bring you an comfortable experience, which is suitable for long?term conference calls. 3This headset can provide excellent sound quality and ensure that the call is clear, ideal for work or study at home. 4With the 3 buttons on the headset, you can easily control the desired voice. The mic boom can be freely rotated 180 to meet your needs. 5This wireless headset has wide range of uses, suitable for truck/car drivers, offices, call centers, etc. PackageList: 1 x_x000D__x000D_WirelessHeadset 1 x ChargingBase 1 x Charging Cable