Features: ES9018 LDAC- is known as one of the Best LDAC- chips today.Using patented- 32-bit Hyperstream-LDAC architecture And time- domain jitter- canceller, can provide up to 135dB Signal-to-noise ratio (DNR-) and -120dB THD+N. High frequency up to 200kHz. Low power consumption and using gold plated interface is not easy to aging. TI LM4562 is uniquely designed with the advantages of ultra-low distortion rate, low noise, high slew- rate, wide operating voltage-range and large output current and high performance. Mostly it is suitable for professional and high-end audio systems-. With Power Adapter/External Bluetooth-compatible antenna/Optical Cable/ Audio Cable Specifications: Decoding chip: ES9018 Bluetooth-compatible chip: QCC5125 Bluetooth-compatible protocol: LDAC-/AptX adaptive/AptX-HD/Aptx-LL/Aptx/AAC-/SBC Bluetooth-compatible sampling rate: 44.1khz/48khz/96khz (the highest) Bluetooth-compatible sampling bits: 16bit/24bit (the highest) Bluetooth-compatible version: version 5.1 Product size: approx 98x88x33mm/3.86x3.46x1.3in- 20meters long distance transmission（in the open without interference） Output: Optical+Coaxial+RCA+3.5mm-jack Plug: -AU/-UK/-EU/-US Power supply:12V to ensure high-quality audio requirements Package Includes: 1Set x Digital Audio converter note: No retail package. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!