【UNIVERSAL COMPATIBLE】The Sarevile Bluetooth headset adapts the latest Bluetooth 5.2 technology. This Bluetooth headset with microphone supports two device connections. On ear wireless headphone is compatible with cell phones, tablets, computers, telephones and other Bluetooth devices.【CRYSTAL CLEAR AUDIO】This wireless headset with directional microphone provides clear sound when having a phone conversation, providing a quiet call environment for the user. Enjoy the freedom of wireless mobile calls and music while driving, running and working.【HANDS FREE CALLING】Sarevile Bluetooth Headset supports Siri voice assistant and mute switch. One key(MFB) to power on the Bluetooth headset and enter pairing mode. Voice prompt connection status, mute status and battery low. One click to answer and end a call, double click to redial the last number. Easy to adjust the volume and switch to the previous/next track.【COMFORTABLE TO WEAR】This Bluetooth headset provides you a comfortable wearing experience for intensive all-day use. The soft-cushion ear pad provides a comfortable around-ear fit for all-day listening. You can adjust the headband to the most comfortable size for your head. And the anti-slip pad will prevent the headphone from slipping off of your head.【LONG BATTERY LIFE】Super long battery life. This wireless headset can be fully charged in 2 hours, offers up to 35 hours of talking time or 60 hours of music playing time(70% volume) after full charge. If you have any problem with this product, please feel free to contact us and we will try our best to help you.説明: Trucker Bluetooth Headset, Sarevile V5.2 Wireless Headset with Microphone, Wireless Headset with Mute for Driver Office Call Center, On Ear Bluetooth Headphone for Cell Phones, Laptops and ComputersHow to pairIn the off status, press and hold MFB for 5-7 seconds to enter pairing mode, the LED flashes blue and red alternately. Search and click to connect KH-23 on the Bluetooth list of your device, the LED flashes blue when connected. Connection with Two devices After the first connection is successful, turn off the Bluetooth on the first device, KH-23 will enter pairing mode automatically. Turn on the Bluetooth on the second device, search "KH-23" and click to connect. Turn on the Bluetooth on the first device, click "KH-23" and connect the Bluetooth headset. Speicial design:HD Voice Support Independent mute key Fast pairing and 1 to 2 connections One key to power on and enter pairing mode One key to activate (Siri) Voice assistant One key to Answer, Reject, End and Redial the last number. Voice alerts connection status, mute status, battery low and incoming call Technical specifications:Bluetooth Version: Bluetooth V5.2 Bluetooth Chipset: BT8926B Charging Time: about 1-2 hours Talking time: 35 hours Music time: 60 hours( 70% volume) Bluetooth range: up to 30 ft（Barrier-free place） Package Included:1 x Bluetooth Headset KH-23 1 x Charging Cable 1 x User Manualカテゴリー: ヘッドフォンメーカー: Xotulvブランド: Xotulv高さ: 22.1 センチ幅: 18.5 センチ奥行: 6.9 センチ重量: 0.3 Kg