1、Excellent sound quality: Using a 40mm large dynamic coil, it brings a professional and balanced sound effect, allowing you to enjoy clear and moving sound quality. 2、Excellent noise reduction: built-in dual microphone voice noise reduction function, effectively reducing environmental noise. 3、Comfortable to wear: lightweight design and full-coverage ear cups allow you to stay comfortable even if you wear them for a long time. 4、Long battery life: Built-in 300mAh high-performance battery supports 20 hours of ultra-long battery life, so you don’t need to charge frequently. 5、Portable design: It adopts folding and rotating portable design, which is 50% smaller and easier to carry.Wireless BT noise-cancelling headphones, 40mm large dynamic coil, comfortable to wear, 20 hours of long battery life, professional and balanced sound, supports wireless/wired switching, compatible with multiple platforms, and low latency for gaming. Features: Excellent sound quality: Using a 40mm large dynamic coil, it brings a professional and balanced sound effect, allowing you to enjoy clear and moving sound quality. Excellent noise reduction: built-in dual microphone voice noise reduction function, effectively reducing environmental noise. Comfortable to wear: lightweight design and full-coverage ear cups allow you to stay comfortable even if you wear them for a long time. Long battery life: Built-in 300mAh high-performance battery supports 20 hours of ultra-long battery life, so you don’t need to charge frequently. Portable design: It adopts folding and rotating portable design, which is 50% smaller and easier to carry. Specifications: Colour: White/black/pink/blue(optional) Moving coil unit: 40mm Game low latency: 50ms Battery capacity: 300mAh BT chip: V5.3 Working frequency: 20-20KHz Communication distance: 10 meters Working voltage: DC5V Microphone interface: built-in dual microphone AUX audio interface: none Type-C charging interface: supported Charging time: about 2 hours Battery life: about 20 hours (noise reduction turned off) Headphones unfolded size: 180mm x 190mm x 80mm Headphones folded size: 180mm x 190mm x 40mm Packaging size: 22mm x 19mm x 5mm Headphone weight: 180g Packing weight: 280g Package list: 1*Headphones 1*Type-C charging cable 1*3.5MM audio cable 1*Instruction manual1*Headphones 1*Type-C charging cable 1*3.5MM audio cable 1*Instruction manual