Qiopertar Running Headphones Wireless Earbuds with Earhooks ?Over Ear Sport Headphones Sweatproof Earphones Workout Jogging Gym Waterproof with Microphone Stereo Sound

   Product Name: Wireless Earbuds Product color: Black Material:ABS Bluetooth 5.0 Bluetooth effective distance < 15m Optimal call distance < 15m Bluetooth operating frequency: 2.402Hz ~ 2.480GHz Built in battery: lithium battery: headset: 3.7v/35mah; charging stand: 3.7v/450mah Single life time of earphone: 6H?with the capacity of earphone compartment: 18h Loudspeaker unit: 8mm Charging time: earphone: about 0.5 hours; Charging box: about 1-2 hour T-ouch Dual wearing mode Charging box size: 9.2x7.4x4.4mm/3.62x2.91x1.73inch Package size:15x8x5/5.91x3.15x1.97inch Net weight: 80g/0.18lbs Gross weight:145g/0.32lbs main material: ABS  Ultra lightweight and compatible for ear: The surface and Angle of earbuds in-ear part have been polished and refined repeatedly to achieve a balance between beauty and comfort and make it