[Over 7 Global Certifications] SmartDevil Bluetooth earbuds are certified by Germany TUV Rheinland, and each process is tested manually and mechanically. We pay more attention to user experience and participate in a number of international certifications, including IPX5 Waterproof, EN50332 level Hearing Protection, and ultra-soft sterile earplugs, etc.

[Rebuilt From The Sound Up] Construction sounds, children's noises, and honking sirens always come just when you're starting to enjoy your quiet time! SmartDevil Bluetooth earbuds utilize leading-edge ENC noise-canceling technology, which enhances immersion to the extreme. Isolated from the city noise, and just enjoy the concert in your ears in peace!

[Ergonomic fit for the human ear]The earbuds specifically use sterile silicone earcaps with more skin-friendly materials to create a comfortable wearing experience for in-ear lovers.

Note: You'll get 3 models of earcaps. Only when you choose the right one, it fits comfortably and snugly in your ears.You don't have to worry about exposing your conversation content to others like semi-in-ear earplugs do, or the earphones slipping off with slight head move.

[New Bluetooth 5.3 Chip] Self-Developed Q1 Chip integrates advanced Bluetooth 5.3 technology, enabling seamless pairing, more stable connections, and lower power consumption. The Bluetooth earbuds are widely compatible with Windows PC, Android, and iOS devices. It supports HSP, HFP, A2DP, AVRCP, and has a Bluetooth range of up to 10 meters.

[26 Hours Battery Life] Bluetooth-Compatible V5.3 drastically reduces power consumption levels, so you can get 7 hours of playback time and 19 hours with charging case. And a leap in power delivers 26 hours of battery life from alternating the use of wireless headphones.