Specification: Item Type: Bluetooth5.0 Telephone Headset Material: ABS Color: Black Type: Monaural Battery Type: Built in 400mAh Lithium ion Battery (included) BT Version: V5.0 Bluetooth5.0 Distance: 32.8ft Bluetooth5.0 Protocol: HSP, HFP, AVRCP, A2DP Decoding Mode: for SBC, ACC Charging Time: about 2 Hours Standby Time: 400 Hours Working Time: about 30 Hours How to Use: Connect and use. The Bluetooth5.0 name is TH11. Long press the TH11 multi function key for 2 seconds to enter the pairing mode. The red and blue lights will flash alternately. PackageList: 1 x Bluetooth5.0 Telephone Headset 1 x USB Cable

[Wide Application]: The microphone headset is suitable for truck or car drivers, can be used in the office for business, can also be used in call centers, and can be used when working or studying at home. [Adjustable]: The office headset is adjustable and easy to operate, allowing you to easily control the voice with four buttons on the headset, and the microphone's rod can freely rotate 270 degrees to suit your needs. [Noise Reduction]: The telephone headphones have noise reduction microphone, which provide excellent sound quality, and can ensure clear calls, and work and study at home will not be affected by the outside noise. [Comfortable Ear Cushions]: The bluetooth telephone headphones are very comfortable to wear due to the head mounted design and skin friendly ear cushions, suitable for long conference calls. [Bluetooth5.0]: The wireless telephone headset supports Bluetooth5.0 and can be paired with mobile phones and any device that supports Bluetooth5.0, compatible with most devices.