- CSR8675 Bluetooth 5.0 receiver designed to deliver studio-quality sound through your ears WIRELESS - using your existing wired headphones, earphones or even speakers. - For greater power independent Dual AK4377A DAC and detail resolution,the BTR3K features both balanced 2.5mm and single-ended 3.5mm outpts. - Can be remotely controlled via FiiO Music app to switch channel balance,8 different DAC lowpass filter and 10-band EQ - New Type-C connector with USB DAC functionality+11 hour of continuous pleasure at a full charge - Bluetooth indicator light +Call up Siri in iOS+In-line Control(in headphones with CTIA controls, you can use the microphone as well as the play/pause, volume, and track selection controls) Selling points summary 1. Balanced and SE output: Truly balanced design with better measurements and better actual sound. 2. Strong decoding: Flagship Qualcomm CSR8675. 3. Lossless support: Bluetooth 5.0,supports LDAC/aptX HD and other lossless formats. 4. Improved measurements: 2x high-performance AK4377A DACs 5. Precise signal reproduction: dual 22.5792M/24.576M crystal design. 6. Double-sided 2.5D glass:aluminum alloy body + double-sided glass. 7.Helps with computer audio: Driverless, plug-and-play USB DAC. 8.RGB light indicator: quickly identifies Bluetooth format. 9.Precise volume control: Volume control independent from device 10. Extended functionality from app: channel balance, audio filters, EQ