Operating time: 5-6 hours, the charging compartment can charge the earphone 4 times +. Charging time: approx. 1 hour Communication distance: 10-15m unobstructed Headset battery capacity: 40 mA (with IC protection board) Rechargeable case battery capacity: 300 mA (with IC protection board ) Ergonomic and comfortable sports design These in-ear headphones are ergonomically designed for a secure fit, fatigue-free and long-lasting comfort for your ears. Whether you're running or jumping, these headphones stay securely in your ears. The waterproof design protects your wireless headphones from sweat, splashing water and sudden rain, making them ideal for jogging, yoga, cycling and more. High-fidelity stereo sound Thanks to the latest professional Bluetooth 5.0 chipset, the loud and crisp bass and exceptional clarity for an immersive listening experience with your wireless Bluetooth headphones. Besides, it offers fast and stable transmission without delay. CVC8.0 noise cancellation suppresses ambient noise during calls, ensuring you hear exactly what you want to hear - perfect for listening to music and making hands-free calls Smart touch control With the touch control sensor you can use the headset to play or pause music, start/end/reject calls, listen to the previous or next track, and activate Siri - all with a simple press of the headset. We believe that customer satisfaction is our main goal, so our customer service team is always at your service. If you have any problem with your product after you receive it, please don't rush to leave a review, contact us first and we will get back to you within 24 hours help