The FiiO BTR17 is a portable Bluetooth DAC and headphone amplifier with dual ES9069Q DAC, a THX AAA 78+ amplifier and a desktop mode delivering up to 650 mW.

The FiiO BTR17 is a portable Bluetooth DAC and headphone amplifier that packs high-end features into a compact body: a multi-stage audio architecture and precision power supply comparable to those of audio players and desktop DAC/amps. It aims to redefine the standard for Bluetooth headphone amplifiers.
The BTR17 is built around the flagship Qualcomm QCC5181 chip, which supports Bluetooth LE Audio and delivers lossless quality within the aptX Adaptive system. Over Bluetooth 5.4 it supports LDAC and aptX Adaptive at 96 kHz/24 bit, as well as Snapdragon Sound technology, for wireless listening close to CD quality.
Two flagship ES9069Q converters with a 4th-generation HyperStream architecture reach a dynamic range of 130 dB and harmonic distortion of -120 dB. The signal then passes to a fully balanced, four-channel THX AAA 78+ stage (eight operational amplifiers in parallel), delivering up to 650 mW + 650 mW into 32 ohms in desktop mode, a 203% increase over the BTR7.
A D.Mode switch and a dedicated power port let you run the BTR17 from an external source without draining your phone's battery. A PC/BT/PHONE selector adapts the power supply to the connected device. The XMOS XU316 USB decoder handles up to 768 kHz/32 bit, native DSD512 and full MQA. A 1.3-inch IPS colour screen, a pressable volume wheel and a leather-wrapped aluminium body complete the package. Available in black and blue.
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Specific References
The FiiO FT13 is a closed-back over-ear headphone with amaranth wood ear cups, a 60 mm dynamic driver, and a W-shaped diaphragm, and is Hi-Res Audio certified.
The FiiO FT5 in black are open-back over-ear headphones with a 90 mm planar magnetic driver, supplied with four interchangeable audio plugs.