Just got these devices by Avantree. Essentially they function as a Bluetooth transmitter of receiver into which you plug in a stereo audio signal. The transmission is via the AptX codec which permits extremely low latency. I tried them out from a midi keyboard connected to my phone (with it's Bluetooth turned off) using the IK pianos and the latency was very low so that it was unnoticeable and the play-ability was great, even for fast repeated notes and trills. The audio was also superb. When I use the phone's Bluetooth any phone plug-in has at least a half-second delay from the keyboard to the Bluetooth out. Units are tiny, pair seamlessly, run for hours before USB recharge (2-3 hours til full).
https://www.amazon.com/gp/product/B00OP ... UTF8&psc=1
They work great from a computer, mixer, keyboard to a PA or to the Avantree Pro aptX headphones (or even really good headphones plugged into the receiver).
https://www.amazon.com/Avantree-Auditio ... Y7M6WAADDR
Me like very much!
Wireless Audio Tricks
Wireless Audio Tricks
"I’ve come to the conclusion that synths are like potatoes, they’re no good raw—you’ve got to cook ‘em, and I cooked these sounds for months before I got them to the point where they sounded musical to me." Lyle Mays