Thanks for the question! From the search results, it seems the Starsound SSA-EQ-7000B 5 Band Equalizer with Bluetooth Receiver for R599 is a great option if you're looking for an equaliser with additional Bluetooth functionality. The 5 band equalizer allows you to custom tune your sound, while the built-in Bluetooth receiver lets you stream audio from your devices wirelessly. A few other options that stood out were the UGreen J-40854 Bluetooth Audio Receiver for R455, which provides a good inexpensive way to add Bluetooth to any audio system, and the Unique 2 In 1 Bluetooth Audio Receiver And Transmitter for R368, giving you both receiver and transmitter modes in one unit. Let me know if any of those interest you or if you need any other details!
