Herdio 4-Channel Bluetooth 5.0 Amplifier | App & Remote Control
A flexible 4-channel amplifier for ceiling, wall and bookshelf speaker systems. Control playback through the mobile app or included remote, with multiple wired and wireless source options. Channels: 4 Wireless: Bluetooth 5.0 and TWS Inputs: USB, microphone and AUX Control: app and remote Memory: power-off setting memory Power supply: 19V/3A adapter included Match speaker impedance and total load before connecting passive speakers.