Bluetooth connectivity allows a single phone to connect to two Amplifier Boxes simultaneously, enabling synchronized wireless playback without cables. Dualchannel stereo output provides separate left and right channels for clear stereo imaging. FullDigital PCM system design delivers lownoise, fidelity audio for cleaner sound. Bluetooth version 5.3 offers improved range, faster pairing, and better power efficiency for reliable wireless performance. Compatibility and setup: works with Bluetoothenabled devices such as smartphones and tablets; supports pairing with two Amplifier Boxes at once for a flexible listening experience. Use scenarios: Home stereo: stream from a phone to two Amplifier Boxes in the living room for a wider, more immersive sound stage. Small gatherings or multiroom playback: run synchronized audio to two boxes to cover a larger area during a party or casual event. Desktop entertainment: connect to two boxes for synchronized audio while watching videos or gaming for enhanced immersion.