Features: HIFI Big Moving Circle: Strong bass effect, 40mm large diameter echo sound unit, performance greatly improved, stunning stereo sound effect, real live experience. djustable Headset: Adjustable design is great for chucking in school bags, for storing in hand luggage and for compact storage at home.Extended Functions: There are three modes you can choose, plug in card mode, plug in line mode, Bluetooth mode. Button Operation: Simple button operation to switch back and forth freely. Foldable And Stretchable Design: Headphones feature a on-ear foldable design, save more space when on storage. Comfortable to Wear: The adjustable headband with soft cushion and pressure-relieving ear pads to ensurelong-wearing comfortable without stress, suitable for people with different ages. Power supply: Built-in 400mAh rechargeable battery can realize about 8H of playing with LED lights.Good gift: Perfect Christmas/Valentine's Day/Birthday gift for family and friends, suitable for office work/sport/school/traveling, etc. Functions: Adjust volume, switch songs, answer calls, reject calls, hang up calls, Bluetooth playback, Bluetooth connection, voice prompts, battery display, FM.TF, EQ, LED lights, pure English broadcastSiri can be summoned. Specifications: Type: Wireless Gaming Headset Bluetooth: V5.0 Material: Plastic, Sponge Color: Pink, Khaki, Light Green, Black, Dark Green Standby Time: About 200 hours Music Playing Time: About 12 hours Transmission Distance: About 15m Battery Capacity: Rechargeable Battery(built in) Driving Device: About 40mm Package Included: 1pc x Wireless Gaming Headset 1pc x USB Cable 1pc x Audio Cable 1pc x Manual