Trucker Wireless Bluetooth 5.1 Earpiece Headset Dual Mic Earbud Noise Cancelling Product Feature: 【Dual-Mic CVC8.0 Noise Cancelling & Clear Sound】The wireless headset combines 2 built-in HD microphones and designed with advanced CVC8. 0 noise reduction technology, which blocks out disruptive background noise like wind, traffic or crowds and the background sounds you might hear, offering crystal clear audio and natural sound, allows you to enjoy high quality music and clear phone calls wherever. 【48Hrs Ultra-Long Playtime with Charging Case】Built-in 500mAh charging case, it can not only protect the bluetooth earphone from damage, but also provide 3 charging times for the wireless earpiece, which is easy to carry and charge your earphone at any time without worrying about the bluetooth earbud running out of power. When single headset is fully charged, it can be used 12 hours of continue talk time. With the portable charging box, you will get 48hrs playing/talking time. 【Bluetooth 5.1 Stable connection】Hassle-free bluetooth headset can be connected to 2 devices at the same time, it provides fast and stable pairing with any bluetooth device, like iOS or Android smart phones, tablets, laptops, MP3 players from up to 33 feets away without signal loss or music dropouts. Stable bluetooth headset for cell phones. 【Freely Angle & Comfortable Wearing】This bluetooth wireless earpiece is designed to fit in either ear.The angle can be adjusted freely and will be worn stably. Flexible 180° rotatable ear hook and retractable 270° boom mic and rotates for a comfortable fit. No more burden on ears even after wearing it for a long time. 【Hands-free for Calling】This Bluetooth headset with mic supports Siri assistant. Easy-to-reach buttons let you manage the music and call hands-free. Note: Answer: click the on key Hang up: click the on key Refuse to answer: Double click the Switch Cancel call: click the on key (used during call) Third party call handover: click the MFB key Continue the current call and end the three party call: MFB Double click Hang up he current call and Switch the three party call: MFB key three hit Call siri: long press on the on button for 1s Close siri: click the on key Pause/play: click on the Switch Volume+ : click the volume+ key Next Song: long press on the volume+ button for 1s Volume- : click the volume- key Last Song: long press on the volume- button for 1s Video call turn off the microphone: long press on the volume+ button for 2s Turn on the microphone for a video call: long press on the volume- button for 2s Product Specification: Type: Bluetooth Earpiece Bluetooth Version: V5.1 Noise Cancelling: CVC8.0 Special Features: Dual connections with two devices Battery: 500mAh Talking time: up to 12 hours Model Name: YYK525 Form Factor: In Ear Waterproof: life waterproof Features: Built-In, Built-in Microphone, Call functions, Extra Bass, HD Voice, Noise Cancellation, Noise Isolation, Rechargeable Battery, Stereo, life waterproof Support system: All bluetooth devices and mobile phones Compatibility: Compatible with all electronic devices that support Bluetooth transmission in low latency Package Included: 1 * Bluetooth Headset 1 * Charging Case 1 * Charging Cable 1 * User Manual