1. Compatibility: Suitable for JBL Xtreme 4 speakers, real machine mold, each hole fits the speaker, does not affect the use of music, and ensures the comfort of users; 2. Adopts one-piece silicone molded material, the surface is rubber oiled, has good texture, more resistant to dirt; 3. With a thickened pressure relief hand strap, it is more convenient to carry out. 4. The bottom support base design allows the speaker to be placed better in a flat position. 5. Material: silicone + nylon hand strap + metal buckle
