Touch- Control Wireless Noise Reduction Headset Bluetooth 5.0 HIFI TWS- Colorful Headset Features: Powerful features: Touch-Control design, easy to use, phone calls and control music play by Touch-field. for in car calling and chatting, play games or working use Take out the earphone to automatically start / pair, and put it back into the charging compartment to automatically shut down Mixture active noise reduction - equipped with a new noise reduction chip, it brings powerful noise reduction computing power, monitors internal and external noise in real, and intelligently generates the opposite signal to cancel, effectively eliminating external environmental noise and low-frequency noise. Bluetooth 5.0 all bluetooth-enabled devices. Instantly connected to your smartphone or tablet from up to 33 feet away（10m). Longer music / talk time: wireless headset with built-in rechargeable lithium polymer battery can be used continuously for up to 4.5 hours at volume Product Description: 1. Bluetooth chip and Bluetooth version: Zhongke Lanxun ab5376t, V5.0 + EDR 2. Horn size and impedance: ⊙ 8mm, 32 Ω 3. Noise reduction depth: 25dB 4. Earphone battery: 30mah; 5. Charging box battery: 300mAh; 6. Charging time: About 1H 7. Charging of charging box: About 2H 8. Transmission distance: ≥ 10m (barrier free) 9. Listening time: about 4.5H (80% volume) 10. Charging port: type-C 11. Charging times of earphone by charging box: 3 times Package includes: 1 x A pair of headphones 1 x USB data cable 1 x instructions 1 x Two pairs of ear muffs 1 x Charging bin