Perfect compatibility: The silicone protective case is perfectly compatible with the Ultimate Ears Boom 4 Portable Bluetooth Wireless Speaker.The appearance size of the silicone protective cover is approximately 190 * 78 * 78mm/inch: 7.48 * 3.07 * 3.07. There are currently three colors available: black/blue/purple Material characteristics: Made of durable and soft silicone material that is not easily deformed. The silicone surface has unique self-adhesive performance and strong anti slip performance, which can effectively cushion the impact force of falling objects and protect the speaker from damage Unique Design：The soft silicone protective case has a precise charging port, and the control button icon can control the volume increase and decrease, Bluetooth, and power switch of the speaker, so there is no need to remove the silicone protective case during charging and use Thoughtful design:Tailor made silicone sleeve preventing your speaker from shake, shock, scratch and drop. Ready for outdoor use. Package Contents:1 silicone case, 1 metal hooks(bluetooth speaker not included). Please note that due to variations in measurement methods and devices, the product weight may slightly differ. Travel Carrying Protective Silicone Case Compatible with Ultimate Ears Boom 4 Portable Bluetooth Wireless Speaker, Silicone Case Cover with Metal Hook for Ultimate Ears Boom 4