1. Seamless fit: specially designed for Soundlink flex audio. (only sell silicone protective sleeve, excluding loudspeaker) 2. Provide effective protection: compared with the traditional silicone cover, you can directly without removing the cover, which play an excellent role while protecting the speaker without damaging the sound quality. 3. design: there is a control button on the side to control the increase and decrease of volume, and turn on / off the power supply of speaker for speaker without removing it. With hollow design, it is convenient for heat dissipation 4. raw materials: the protective cover is made of soft silica gel, , non- and environment-friendly. It can protect the speaker from falling, bumping, scraping and scratching when carrying. 5. Portable travel: equipped with a metal mountaineering buckle, which can be hung on the backpack, which solves the inconvenience of outdoor sports or travel Compatible: for SoundLink Flex portable speaker Colour:Black Material:Silica gel Package Contents: 1 x Bluetooth Speaker Case Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.