1、Foldable on ear headphones without cord, which is not only designed for saving your desk space but for convenient carrying in your bag. 2、Qualified driver units of the on ear headphones deliver full, balanced sound for a complete listening experience from 20 - 20,000 Hz. 3、Built-in rechargeable lithium battery can work for up to 4-6 hours and its standby time can reach to 720 hours per charge cycle. 4、Comes with padded headband, cushioned \u0026 pressure-relieving ear pads, it will be comfortable to wear for a long time. 5、With high-sensitivity microphone, you can enjoy clear hands-free calls anytime and anywhere. 6、Ergonomic design, the headband length is adjustable, meeting different sizes of heads. 7、BT technology ensures hassle-free pairing and reliable transmission with smart devices 8、BT connection, TF Card, Aux In Devices, receiving calls are supported. Overview: This pair of over ear headphones is specially designed for music lovers and enthusiast, which features BT 5.0 technology, 3.5mm audio port and hands-free function. It will be a perfect gift for family and friends. Features: Foldable on ear headphones without cord, which is not only designed for saving your desk space but for convenient carrying in your bag. Qualified driver units of the on ear headphones deliver full, balanced sound for a complete listening experience from 20 - 20,000 Hz. Built-in rechargeable lithium battery can work for up to 4-6 hours and its standby time can reach to 720 hours per charge cycle. Comes with padded headband, cushioned & pressure-relieving ear pads, it will be comfortable to wear for a long time. With high-sensitivity microphone, you can enjoy clear hands-free calls anytime and anywhere. Ergonomic design, the headband length is adjustable, meeting different sizes of heads. BT technology ensures hassle-free pairing and reliable transmission with smart devices BT connection, TF Card, Aux In Devices, receiving calls are supported. Specifications: Model Number: V33 BT Version: 5.0 Operation Distance: ≤10m Battery: 3.7V 200mAh Rechargeable Lithium Battery Frequency Range: 20H-20,000Hz Impedance: 32Ω Working Time: up to 4-6 hours Standby Time: 720 hours Charging Time: 1 hour Charge Port: Micro USB Plug Type: 3.5mm Audio Port Color: Black, Red, Blue, Brown (Optional) Charge Input Voltage: DC 5V Main Item Size: approx. 180 * 75mm / 7.09 * 2.95in Item Weight: approx. 194g / 6.84oz Package Size: approx. 173 * 160 * 90mm / 6.81 * 6.3 * 3.54in Package Weight: approx. 335g / 11.82oz Package List: 1 * Headset 1 * USB Cable 1 * Audio Cable 1 * User Manual (English & Chinese Version) 1 * Headset 1 * USB Cable 1 * Audio Cable 1 * User Manual (English & Chinese Version)