IMPRESSIVE SOUND YOU GET: RT07 Bluetooth Earbuds are featured with noise cancelling technology and Audio Codec. It produces Hi-Fi audio and deliver dynamic, crystal clear sound while blocking ambient noise. 6mm dynamic drivers work in unison create Truly Natural, Authentic Sound and Powerful Bass. LEADING PLAYTIME: Enjoy up to 5 hours of music time. The included compact charging case offers you additional 60 hours of play, fully recharge just in 2 hours. (The earbuds last 5 hours for a single charging, and the charging pod provides about 12 times recharge, That's the 60 hours.) BLUETOOTH 5.0: The most advanced Bluetooth 5.0 ensures stable and fast connectivity, more smooth transmission. Connect seamlessly with all Bluetooth enabled devices up to 10m(33ft) away. Enable wireless Bluetooth mode and enjoy your sound wirelessly. High-performance Audio SoC: Designed with Cortex-M4 80Mhz+DSP 160Mhz_ Adio Codec, it supports up to 24bit/192kHz Hi-Res Audio Play. RT07 Wireless Earbuds Bluetooth’s IC is featured with overvoltage, overcurrent, undervoltage protections. Bluetooth protocol: HFP 1.7, HSP 1.2, A2DP 1.3, AVRDP 1.6, SPP 1.2, PDAP 1.0. Easy Access to Controls: Wireless Earbuds allow easy and quick access to the basic controls, such as skip, forward or pause. Besides these, you can control the volume this way. Comfortable fit that stays comfortably in place to guarantee fatigue free ears when running, jogging, and working out.