175KB,Amazon.com: Sondery Wireless Transmitter Receiver System 5.8GHz with Display Screen for Easy Monitoring for Guitar Bass Keyboard Multi Instruments ,Amazon.com: Sondery Wireless Transmitter Receiver System 5.8GHz with Display Screen for Easy Monitoring for Guitar Bass Keyboard Multi Instruments ,9KB,ONKYO Bluetooth TX-SR343, 5.1-Channel A/V Receiver, Surround Sound,