Product description Color:Black 1. [ NON EAR PLUG DESIGN ]- Headphone version is the Ear-hook design, not in-ear, free from eardrum damage. Easy to carry, suit for all peoples, do not fall when running. Wear in left or right ears, with glasses is ok. With Built-in microphone is for Hands-free calling. 2.[ SPEAKER UNIT IS EXTERNAL] - Loudspeaker close to the ear but it is not inside the ear, will not plug block the ear canal. Listening to the surrounding environment during a call or music, Safer on the road or in some scenes and more portable for business, work. 3.[ COMES WITH TWO DETACHABLE EAR TIPS] - Suitable for the left and right ears, the ear tips make the earhook wireless headphones sound more concentrated. Especially in a noisy place, you must wear ear tips to make your music and calls clear. 4.[ LIGHTWEIGHT DESIGN ]- Very light, no pressure or pain feeling in long time use. Ear hook designing and ergonomic design, wireless headphone affixed to the ear, suit for all peoples, do not fall when running or driving. 5.[Built-in high performance lithium battery]- 6 hours continuous answer phone, about 6 hours music playing time, 150 hours standby time.