🔈 Turns Surfaces into Speakers: Uses bone conduction to turn hollow objects into sound sources. 🎶 Custom Sound: Different surfaces = different sound effects. 🔗 Stereo Pairing (TWS): Pair two for 2.0 surround sound. 💥 Loud & Compact: Up to 115 dB with the right surface. 📱 Multi-Use: Great for music, calls, games, FM radio & more.