Bluetooth-compatible private call, driving safely Call mode for easy switching Two devices can be connected at the same time High quality sound smart noise reduction Line out audio output, host power supply charge anytime you put it in Micro port charging function, QC3.0 smart fast charging Specifications: Bluetooth-compatible version: 5.0 Receiving distance: 10m Rated working voltage: 12-24V Limit working voltage: 10-26V USB 1 output: 2.4A/5V USB 2 output: QC3.0 Transmission frequency: 87.5-108MHz Operating frequency: (2.402-2.48) GHz Battery capacity of headset: 40mAh Talking time: 2.5 hours Charging time: about 50 minutes Standby time: about 60 hours Wire length: 110cm Applicable mobile phone: general mobile phone Service conditions: the car radio and cigarette lighter can be supplied normally Compatible with: Apple/Xiaomi/Huawei etc and other phones and devices which support Bluetooth-compatible 5.0 version Compatible with iPhone 12 Pro Max 6.7 inch iPhone 12 Pro 6.1 inch iPhone 12 6.1 inch iPhone 12 mini 5.4 inch Xiaomi Mi 10 Pro Xiaomi Mi 10 Huawei P40 Huawei P40 Pro Galaxy Note20 Ultra Galaxy Note20 Package included 1 x Bluetooth-compatible Headset 1 x Audio Cable 1 x Headset Cap 1 x Air Conditioning Clip 1 x English Manual Specifications Packaging Type Colored Box User Manual (Language) English Gross Weight 0.140kg Volume Weight 0.133kg Package Length 12.300cm Package Width 11.800cm Package Height 4.100cm