Why choose this headset? 1. Ergonomic design, the headband can be retracted to fit any size of head. 2. Ultra-light design, the headset only weighs 140 grams, making it stress-free to wear for a long time. 3. Super soft high-quality protein earmuffs can provide long-term comfort to your ears. 4. The rechargeable battery can be used continuously for more than 10 hours. It is equipped with an audio cable and can be switched to wired mode at any time, so there is no need to worry about low battery power. Enjoy music anytime, anywhere without interruption. 5. High-fidelity headphones, using 40mm dual drivers, giving you a concert-hall-like listening experience. Offering superior immersive HIFI sound quality and a closed ear environment, you can immerse yourself in the music. 6. Widely compatible with TVs, computers, mobile phones and other audio equipment. Equipped with USB transmitter, 3.5 audio cable, RCA cable, USB charging cable, very easy to operate. This headphone is definitely the best gift for parents, lovers, family, friends and audiophiles and home audio lovers, providing high-quality sound reproduction. Wireless Bluetooth headset parameters: Bluetooth transmission distance: 10-15M Speaker impedance: 32? Battery life: Over 10H Transmission frequency: 88.1Mhz Speaker size: 40mm Charging time: 1-2H Connection method: one-to-one Launch distance: 10-15m Bluetooth headset specifications: Material: Electronic components, ABS, leather Battery type: Rechargeable battery Wearing method: head-mounted Colour: Black Headphone weight: 140g Headphone power supply: lithium polymer battery/rechargeable Packaging contents: headphones, USB transmitter, 3.5 audio cable, RCA audio cable, charging cable, manual