BT029C Ear Bluetooth Headset. Folding Storage, Bluetooth/audio Cable Connection. Features: EXCEPTIONAL SOUND – With the advanced 40 millimeter speakers – the biggest this headphone category has to offer – BT029C wireless over the ear headphones provide exceptional sound quality and music , wherever you listen. UP TO 14 HOURS OF USE – Get up to 14 hours of battery life from a charge, giving you more to listen and enjoy. Plus, with the fastest charging in the category, you’re never more than a few minutes away from great music and calls. COMPACT DESIGN – Compact, foldable and lightweight, these wireless headphones are designed to fit perfectly into your life. Soft and-friendly ear cushions ensure outstanding comfort and fit, making them ideal for all day use. Audio and video synchronization - The new version of Bluetooth 5.1 is adopted, which supports lossless audio transmission. Compared with the Bluetooth 4.2 version, the transmission speed is faster and more stable, and the signal is . It truly achieves-low latency audio and video synchronization. Convenient to carry - The foldable design of the body makes the earphones have excellent convenience and are suitable for wearing and listening on the street. Product Description: *Bluetooth and auxiliary input function *Folding - Bluetooth version: 5.1 - Battery specification: 3.7V, 400mAh - Charging time: 2 hours - Usage time: 5.5 hours (neon lights on) - 14 hours (neon lights off) -Material: ABS Packing size: 18.7*8.4*19.5 CM Packing size: 81*42.5*47.5 CM Quantity per carton: 40 PCS Available Colors: Blue/Pink/Purple/Green