Product parameters Model N30 Bluetooth version V5.1 EDR Wireless frequency 2.4GHz Transmission distance 10M Earphone battery capacity 35mah Battery capacity of charging bin 300mAh Charging voltage current: 5V 1A Play talk time about 5-6 hours Charging time about 1 hour Standby time 0 hours Horn resistance 8MM 32 Product features Upgrade Bluetooth 5.1 chip, reduce picture synchronization delay, and strengthen signal connection to maintain continuous stability even in bumpy steps Take out the headset from the charging bin, and Bluetooth will automatically connect and pair, bringing a more humanized and comfortable use experience The external microphone will detect external sound waves, and then before you hear these noises, the noise reduction chip will send out equivalent sound waves to cancel them, so as to reduce noise Compared with the traditional Bluetooth headset in the past, it has not only greatly improved the bass effect, but also greatly improved the sound quality fidelity and anti-interference Using real copper ring large dynamic horn, supplemented by black technology graphene diaphragm, restore delicate vocal instrumental music, solid and surging drums, and experience the surround 3D stereo effect from human ear to brain Intelligent noise reduction technology, combined with in ear sound insulation design, realizes high-definition call effect and can talk efficiently in noisy environment With finger touch, you can cut songs, answer, hang up, voice assistant and other functions It has excellent endurance, provides long-term power output for headphones, and makes your travel always accompanied by music 5 degree angle inclined into the ear, in line with ergonomics, more appropriate to the ear, Golden Triangle arc groove, more firm to wear, no pain and more comfortable to wear for a long time