ZEALOT B20 Wireless Headset Foldable On-Ear Bluetooth Headphones with HD Sound Quality Superior Bass (Black) High-fidelity technology, allowing you to listen to various styles of music with perfect experience Portable, adjustable design: folding, save space, can be stretching the length according to your head size, allowing you to enjoy music in the most comfortable way High-quality leather earmuffs, more comfortable on the skin. The appearance of fine luxury. It can be used as a special gift Latest bluetooth wireless technology, away from trouble of wire. If you need to use as a wired headset, you can simply use an audio cable and power off the headset. Battery can be replaced: The headset using a generic BL-5B battery, you can replace yourself when it aged.