FiiO BTR15 Portable High-Fidelity Bluetooth Amp/DAC Color:Blue When replacing the cable

When replacing the cable

Unique notch filter technology

the ATH-M40x excels in professional studio tracking and mixing

The Pair features auto-pairing

There are high purity conductors from our custom Beryllium Copper MMCX connector to the driver and back again

FiiO BTR15 Portable High-Fidelity Bluetooth Amp/DAC Color:Blue When replacing the cableBTR15 Bluetooth DAC and Headphone Amplifier QCC5125 + XU316 high performance combo Change modes with just one button Global parametric EQ 3. 5mm+4. 4mm dual outputs 0. 96 inch OLED display Dual curved glass Independent power supply for amp Dual DACs for fully balanced Comprehensive battery protection Change modes with just one button Due to the BTR15's ability to work as a Bluetooth receiver and as a USB DAC, we have implemented a PC BT PHONE mode