Product name: Multifunctional Bluetooth wireless headset Charging interface: Type-c Headphone capacity: 25mAh Charging compartment capacity: 200mAh Charging time: 1H Operation mode: touch + button Wireless version: V5.4 Transmission distance: 10-15M Features 1. Large dynamic coil composite diaphragm, HIFI-level sound quality as if you are on the scene Adopting large unit composite diaphragm, providing a wider and flatter frequency response to improve the clarity and details of the sound, and the sound quality is delicate and restored 2. Intelligent ENC call noise reduction, so that you can hear more clearly The human voice noise reduction algorithm is supported, which effectively filters environmental noise and accurately picks up human voice for online meetings and business calls, so that you can communicate clearly even in the downtown area 3. Shark ear wing design, as small as fingertips, no ear pain, better sleep Designed for sleep, small body does not pick ear shape, large and small ear canals are easy to wear, close to the ear without bulge, side sleep No pressure 4. Ergonomic design, more comfortable to wear Ultra-thin body, ergonomic ear-fitting design fits the ear canal, comfortable and non-sense to wear 5. Sleep aid, physical sound insulation and noise blocking Designed for sleep aid, deeply fits the ear canal, effectively reduces snoring, car horns, construction site noise, noise and other annoying noises, and obtains a relatively quiet environment experience 6. The new Bluetooth 5.4 has more powerful performance Upgraded Bluetooth 5.4 module technology, the left and right ears receive and transmit Bluetooth signals simultaneously, and the transmission speed is increased by 2 times No fear of freezing 7. Waterproof and dustproof for sports, no fear Strict structural design, efficient waterproof, no fear of rainy days, more comfortable sports 8. Easy to take, easy to put and put Easy to take out by pressing down 9. Small size and large capacity Using large-capacity and high-performance lithium battery, it can continuously provide you with battery life and let you play all day long Color: black, skin color, purple Style: single earphone, with strap Product weight: Single earphone: 50g With strap: 80g Product size: 10.4*9*3.1cm Packing list: Single earphone: earphone + earphone compartment + charging cable + instruction manual With strap: earphone + earphone compartment + charging cable + instruction manual + strap