new packing M163 Mini Wireless Bluetooth Earphone 4.1 Stereo Invisible Headset Earbud. Ultra mini design, light weight, easy to carry. High-fidelity sound quality. Can be compatible with various bluetooth enabled devices such as Mobile Phones, Tablets, PC and so on. 2 colors for your choice: : black, white Size: approx. 43 x 14 x 9.9mm Package Includes: 1pc x Earphone Note: Due to the hand measurement, there have size error about 1-5mm. Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same.