Hi,my dear 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. Halter Neck Wireless Bluetooth Headphones Multi-Function Sports Earbuds In-Ear 5.0 Unisex Maximum Comfort Features: Features: in-ear stereo headphones, beautiful sound effects. Bluetooth 5.2 chip, fast Bluetooth connection, more stable transmission, easier connection, and listen to songs more smoothly. Design: The halter neck design is ergonomic, non-restrictive, comfortable and lightweight, suitable for all-day wear. Low-profile and Simp-le, it easily adapts to your style. Perfect Sound Effect: Provides balanced and natural sound, allowing you to enjoy dialogue and music without audio loss and interruption. Buttons: powerful functions like , ANSWER-calls, play and pause. Applicable occasions: charge for 2 hour, work for 7 hours. Sports, fitness, going out, travel, leisure, work and other places. Product Description: Size：15x14cm/5.90x5.51inch Principle of vocal music: moving coil Battery capacity: 130mAh Charging voltage and current: DV5v, 80mA Fiber transfer distance: 10M Music time: about 7 hours Talk time: about 7 hours Standby time: about 120 hours Charging time: about 2 hours Sound style: Bass Sensitivity: 110dB Impedance: 16Q Horn size: 10mm Frequency response range: 50-20khz Package includes: 1 x Headphones A pair of earmuffs 1x Charging line Features: Features: in-ear stereo headphones, beautiful sound effects. Bluetooth 5.2 chip, fast Bluetooth connection, more stable transmission, easier connection, and listen to songs more smoothly. Design: The halter neck design is ergonomic, non-restrictive, comfortable and lightweight, suitable for all-day wear. Low-profile and Simp-le, it easily adapts to your style. Perfect Sound Effect: Provides balanced and natural sound, allowing you to enjoy dialogue and music without audio loss and interruption. Buttons: powerful functions like , ANSWER-calls, play and pause.