Audio Adapter 140mAh Transmitter Receiver Bluetooth-compatible 5.0 for Car | eBay
1Mii M2 Wireless Guitar System, 5.8 GHz Guitar Transmitter Receiver with 8 Hours Runtime, Rechargeable Wireless Guitar Transmitter Receiver for Electric Guitar, Violin Keyboard, Upgraded: Amazon.de: Musical Instruments & DJ
Amazon.com: Electronic Guitar Bluetooth Transmitter Receiver and Receiver,6 Channels Rechargeable Wireless Guitar System 2.4GHz 6 Hours Long Battery Life For Bass Electric Instruments : Musical Instruments
Vergleichstest Drahtlossysteme für Gitarre und Bass - Bonedo