combination experience Bone conduction speakers connect wirelessly. Two speakers can pair automatically over wireless, delivering true wireless stereo. Using two connected speakers provides a 5.0 surround sound experience. Small but powerful speakers When placed on the right object for the bone conduction horn, the speakers can be very powerful, reaching up to 115 decibels. It is recommended to place thin objects such as Halloween plastic boxes or buckets to optimize resonance. Different sounds with different surfaces This speaker uses bone conduction technology to give you a diy sound experience. You can test and enjoy different sounds, almost like using different instruments. Placing it on different surfaces such as glasses, guitars, kraft paper boxes, plastic storage boxes, photo frames, sport headphones or dashboards can give a variety of sound effects. Use scenarios Home entertainment: pair two speakers for true wireless stereo and an immersive listening experience in a living space. Creative exploration: perform sound design or play with different surfaces to create varied tones, similar to using different instruments. Educational demos or displays: use on boxes, dashboards, or other objects to demonstrate bone conduction audio in classrooms or exhibitions.