Product Description Color: blackwhitered 5dB Frequency Response: 20-20kHz Playing Time: About 6-8h Charging Time: About 1.5h Package Contents: 1 * Wireless Mini Headphone 1 . NON EAR PLUG DESIGN- The upgraded headphone version is the ear hook design, not in the ear, free from eardrum damage. Easy to carry, suitable for all peoples, do not fall when running. Wear in left or right ears, with glasses is ok. With built-in microphone, you can make hands-free calls. 2. SPEAKER UNIT IS EXTERNAL - The speaker is close to the ear but not in the ear and does not block the ear canal. Hear the surroundings during a call or music, safer on the go or in some scenes and more portable for business, work. 3. Suitable for 2 Ears- Suitable for both left and right ear. The ergonomic structure is adopted, and the smooth body curve is firmly connected to the ears, so that the ears are evenly stressed, giving you a better wearing experience. 4. LIGHTWEIGHT DESIGN- 10g weight, very light, no pressure or feeling of pain for long-term use. Ear hook design and ergonomic design, ear-mounted wireless headphones, suitable for all people, will not fall off when running or driving. 5. Skin-friendly Material Design- The surface of the body is painted with metal, as delicate and smooth as the skin, extremely comfortable to wear every time. Built-in 90mAh lithium battery to meet your needs for great performance and longer battery life.