I cannot believe the sound emanating out of this little Diamond Glass device. I am paired to my iPhone listening with my Shure SE-215’s in ACC wireless for the first time. The 3.5mm port is configured for a balanced feed cable which I am using. I am listenIng to Philip Glass’s spell binding lite opera Akhnaten. I don’t know how to describe what I am hearing except to say I will never plug a set of ear phones into this iPhone ever again.
The BTR5 itself is a sold device with Diamond Glass front and back with all of the controls down the right side. On top are located a 3.5mm plug optimized for a balanced cable set, and a 2.5mm for a balanced cable. It has a small OLED Status display. It easily pairs, Siri functions as expected (stop laughing ) ) It’s built in microphone is reported to me to sound very good in phone calls. The BTR5 does Qualcomm aptX, aptX HD, and Sony’s LDAC in addition to ACC wireless. Battery life is about 9 hours. One strange thing about it. The Diamond Glass front and back are so smooth and friction free that if you set it down on anything smooth it will start to slide around on its own like it has an air cushion going so be very careful were you set it down. It comes with a pocket clip to snap it into, good thing. It uses a “C” USB cable for charging and firmware updates
There is a App to control the BTR5. it has a less than useful to me music player. But it also has complete controls for the BRT5. There are things there I have never seen before. You can enter the impedance and sensitivity of your earphones, default Bluetooth codex, how the buttons work, power and display settings. An equalizer, volume controls X 3, a low pass filter suite, Distortion compensation, 2nd and 3rd harmonic compensation, a DAC clock divider. If I understand one of the settings you can plug the BTR5 directly into a USB source and use it as a hard wired DAC. There is even a DLNA setting.