Description: Bluetooth version: 5.0 Headphone material: ABS plastic Headphone power: 55 mA Charging compartment: 450 mA Listening time: about 3 hours Product size: charging warehouse 7.5*4.3*2.8cm Packing size 13.5*8.5*3.5cm Specifications: 1. Noise cancelling technique helps against loud and annoying noise. 2. The controller was designed to control volume, select songs and take calls. 3. Even wear for a long time also wont fatigue; they are less likely to fall out, and enjoy your music. 4.Perfect stereo headphones with high quality drivers enables you experience natural clear and super enhanced bass sound. Package Included: 1*earphone 1 * Instruction Manual 1 * USB charging cable After sale: If you find that the quantity does not match or there is a problem with the quality after receiving the express, please do not raise any disputes at will, and contact our after-sales customer service to resolve it in time. Thank you for your support and understanding. Note: This product has no box, OPP packaging, thank you