C39S Bluetooth Receiver Transmitter RCA Speaker to 3.5mm Wireless Audio Adapter,
Bluetooth: Bluetooth 5.0. Functions: RCA red and white lotus port / AUX audio port / TF card playback. - Bluetooth adapter x 1. - 3.5mm audio cable x 1. Accessory list Product size: 6.9 6.9 23.5cm.