Product information: Transmission range: 15 meters Function: noise reduction, power display, call function, NFC function, voice control, support for music, multi-point connection Bluetooth protocol: 5.2 Channel: Stereo How to use: hanging ear Whether single or binaural: bilateral stereo Packing list: Bluetooth earphone*1     TurboTech.co Guarantee: We truly believe that we offer some of the most innovative and inspirational products in the world, and we want to make sure we back it up with a risk-free ironclad 30-day guarantee.   If you don't have a positive experience for ANY reason, contact us and we will make sure that ALL your concerns are addressed and you leave 100% satisfied and smiling We have 24/7 Ticket and Email Support. Please contact us via e-mail or our contact form if you need assistance we're here for you. 4 GREAT REASONS TO BUY FROM US AND 4 GREAT FACTS ABOUT US… 4700+ Happy Customers Free Secured Shipping (Worldwide) Perfect Gift Ideas Guaranteed Safe Checkout   Shipping Policy :  All orders are shipped directly from Our Fulfillment center. The time it will take to arrive depends on the production time and availability of the products. Most orders are processed within 24 hours.