All-day Battery Life with Digital Display Charging Case： Enjoy 10 hours of listening from a single charge, and extend it to 60 hours with charging case.Dual LED digital battery indicators outside of the charging case show the remaining power of case in real-time and charging status of wireless headphones.
Bluetooth 5.3 & One-step Fast Pairing: BX30 bluetooth headphones using bluetooth 5.3 chip, transmit 3X (or more) the amount of data than AAC or SBC coding method and low latency listening experience (less than 10ms), full link latency as low as 0.05 seconds, the connection is more stable and reduce the problem of disconnection.Simply open the charging case and it automatically connects to the previously paired headphones device, instantly completing pairing.
Design for Sports & Premium Appearance： Adaptive soft silicone ear hooks, 27.5° angled in-ear structure with three sizes of ear buds (S/M/L), three points of support, solid and airtight, running, hiking, skateboarding various sports are no longer limited. 9D HD screen, dark frosted process bluetooth earphones charging case with metal silver edge, easily with business, technology, leisure a variety of styles.

Bluetooth 5.3 and One-Step Auto Pairing: Csasan wireless earbuds adopt the most advanced bluetooth 5.3 technology, providing you with 2X faster transfer speeds (80% higher than the previous generation) and a more stable connection, with almost no delay. Whether you’re making calls or sports, there’s no need to worry about signal interruption. Once the bluetooth earphones are connected for the first time, simply open the charging case and the ear buds will automatically connect to your phone.
Immersive Sound and ENC Noise Cancelling Mics: These wireless earphones adopt a unique stereo design with 13mm big composite diaphragms and AAC codec to produce professional-grade sound. The bluetooth headphones are equipped with ENC noise reduction double mics to passively cancel 80% of background noise, allowing you and the caller to hear each other better and make crystal-clear calls with minimal background noise.
40 Hours Playtime and LED Display: These bluetooth earbuds provide up to 6-8 hours of high-quality sound output on a single 1.5-hour charge, and the included charging case provides an additional 4 charges, giving a total playtime of 40 hours. They feature a smart LED digital display, allowing you to easily monitor the battery consumption of both the wireless ear buds and the charging case so you can know when to charge them. You’ll never have to worry about battery life even on long trips.