The latest flagship Bluetooth amplifier, succeeding the BTR7. Supports aptX Lossless, features a THX AAA 78+ amplifier, and boasts an upgraded maximum output of 650mW. Equipped with the QCC5181 for cutting-edge wireless performance, supporting lossless audio. External independent power supply connection port enables safe and efficient power delivery. Three modes offering versatile connectivity and optimal power supply. Exceptional performance from the XMOS 16-core "XU316". Features a 10-band high-definition lossless PEQ for detailed sound quality adjustments. High-quality sound reproduction with dual "ES9069Q" DACs. Powerful output and excellent sound quality from the "THX AAA 78+" amplifier. High-end signal processing. Power supply design focused on high sound quality, low noise, and low distortion. Excellent interface and high-quality three-dimensional sculpted processing. Includes a high-quality 8-core special cable. Various functions and accessories for expanded usability. Wheel and button controls designed for ease of use. Equipped with the Qualcomm "QCC5181" Bluetooth platform and supports the LE Audio standard. With a transmission capacity of 2.1 Mbps, it achieves lossless transmission with the aptX Lossless codec, providing CD-quality lossless audio wirelessly. Furthermore, the BTR17 supports the latest Bluetooth 5.4. It covers major high-quality codecs such as LDAC and aptX Adaptive (96kHz/24bit). Combined with Snapdragon Sound technology, it delivers a high-quality Bluetooth audio experience. The BTR17 has also obtained "Hi-Res Audio certification." Maximum bit rate of supported codecs: aptX Lossless: 1200 kbps LDAC: 990 kbps aptX HD: 576 kbps aptX Adaptive: 420 kbps AAC: 328 kbps Used only a few times, feeling it's a waste, so it's in excellent condition. Selling it as part of a decluttering effort, as it's not being fully utilized. Thank you for your consideration.