The FiiO BTA30 is a Bluetooth receiver/transmitter and USB DAC supporting LDAC/aptX HD. ※This is the predecessor model to the current BTA30pro. I mainly used it as a BT transmitter to output audio from my PC to LDAC-compatible TWS earbuds, but I am selling it due to a change in equipment. All accessories are included. There are no noticeable scratches on the exterior, and the protective film on the top surface has never been peeled off since it was new, so the exterior condition is good. It has been used for about 3 years, but I have never experienced any problems and I think it can still be used for a long time. However, please consider this as a used item. ＜Product Overview＞ ・Bluetooth transmission/Bluetooth reception/DAC function ・Supports LDAC/aptX HD ・Equipped with Qualcomm's flagship Bluetooth chip CSR8675 ・Equipped with high-performance, high-quality DAC AK4490 ●Dimensions: 120 x 55 x 23.5 mm ●Weight: Approximately 115g ●Output terminals: RCA line output/Optical digital output/Coaxial digital output ●Input terminals: Optical digital input ●USB port: Type-C ●Supported decoding formats: 96kHz/24bit (optical), 192kHz/24bit, DSD64-DoP (coaxial) ●USB audio output format: 44.1/48kHz 16bit ●Bluetooth: 5.0 ●Bluetooth codecs ・Reception: SBC/aptX/aptX HD/LDAC ・Transmission: SBC/aptX/aptX LL/aptX HD/LDAC ●Communication distance: 30m ●S/N ratio: 115 dB or more (line output) ●THD+N: Less than 0.002% (line output, coaxial digital 48kHz/24bit input, 1kHz -3dB) ●Accessories: Quick start guide/Warranty card/USB cable/RCA cable/Anti-vibration cushion ※Please consider this as a used item. ※It is also listed on other flea market sites, so the listing may be cancelled suddenly.