Hi, Dear little angel, welcome to Jacenvly, our products are cheap and good quality, price is fair, you can't miss it. If this product is not your style, please click on our store, we have many kinds of products, there will be you like and suits you. If you have any questions about your purchase, please send us the first message, we offer world class customer service to make your purchase without your worries. Have a nice day. 5.1 Three True Digital Display Wireless Bluetooth Headset Stereo Binaural Charging Compartment, Suitable For Office/game Features: Product name: Bluetooth headset Item model number: R190Pro Colour: Black,Gray,Purlple Bluetooth: 5.1 Impedance: 32 Ω±15% Transmision distance: 10 m Frequency: 20 HZ-20 KHZ Charging time: 60 minutes Working voltage: 3.7 V-4.2 V Earphone battery capacity: 40 mah Earphone battery capacity: 300 mah Product size: 4.2x4.2x2.5 cm(1.66x1.66x0.98 inch) Package size: 9.4x8.5x4.0 cm(3.70x3.45x1.57 inch) Gross weight: 70 g/0.154 lb Product Description: Bluetooth 5.1Technology - The Bluetooth headset uses the Bluetooth 5.1 chip. Stable data transmission and wide wireless coverage. all Bluetooth enabled devices. Great for gift giving. Fashionable, and lovely: fashionable appearance can show personality, delicate and, shape, comfortable feel, young people's standard. Hi-Fi Stereo Sound Quality: The Bluetooth earbuds use the latest technology in the speakers and with their special construction, both earphones can produce clear and stereo sound. You can use it in the gym, office or outdoors. You can enjoy music anytime, anywhere, even in noisy environments. 7-level - no fear of sweat The earphone body with multi-process design reaches .life-class , not afraid of rain, not afraid of sweat, sweat, wind, rain. Automatic pairing. Pick up the earphones from the charging case, and the earphones will automatically pair when powered on. Then activate the phone's bluetooth to connect. the first connection is successful, the sports earbuds will automatically connect to the last paired device . Ideal Design for Exercise-This Bluetooth headphones provides Extra Flexibility, Portability, and Durability when exercising. You’ll never have to worry about these headphones falling off! No pain for long time using. Suitable for gym, working out and running. Instructiongs: Because the size of the product is measured manually, there may be errors. Product Includes： 1x Bluetooth Headset 1x Manual 1x Data Cable 2x Ear Caps Features: Product name: Bluetooth headset Item model number: R190Pro Colour: Black,Gray,Purlple Bluetooth: 5.1