What's in the box:

HD 2.0 Audio Extractor Support 4K 60Hz YUV 4:4:4 and HDR HD to Optical SPDIF Analog RCA L/R 3.5mm Converter (Black)

Features:
Extracts HD audio to multi-channel optical (SPDIF) or L/R 3.5mm headphone analog audio.
The HD resolution supports up to 4K / 60fs, and supports 3D, HDR, and YUV4: 4: 4.
SPDIF optical output supports AC3, DTS, LPCM and other digital audio formats, and supports 5.1CH.
Audio output supports 3 EDID selection modes (2CH / 5.1CH / PASS).
24bit / 192KHz DAC chip is adopted to ensure high quality sound quality.

Specifications:
Suppoort HD HDCP Version: HDCP 2.2
HD Input/Output Resolution: Up to 4K/60fs
Support HD Video Color Format: 2160P, 10/12 bits, 24/25/30Hz, 2160p, 10/12 bits, 50/60Hz
HD Audio Format: DTS-HD/Dolby-TrueHD/LPCM7.1/DTS/olby-AC3/DSD
SPDIF Digital Audio Formate: Dolby Digital(AC3)/DTS/LPCM
Input Output TMDS Signal: 0.5~1.5Vp-p(TTL)
Input Output DDC Signal: 5Vp-p(TTL)
DAC sampling frequency: 32~192 KHz
DAC bit rate: 16~24 Bit
RCA analog output (1KHz@0dB): 1V RMS
Signal to noise ratio @0dB(CC1R/ARM): .90dB
Distortion degree: 0.1%
Frequency response: 20HZ~20KHz
HD Input Cable Distance: 3 m AWG26 HD Standard Cable
HD Output Cable Distance: 3 m AWG26 HD Standard Cable
Max Working Current: 400mA
Power Adapter Format: DC 5V/1A
Operating Temperature Range: -10~+55?
Storage Temperature Range: -20~+60?
Package Size: 8.5 * 6.1 * 2cm / 3.3 * 2.4 * 0.8in
Package Weight: 124g / 4.4oz

Package List:
1 * Audio Extractor
1 * Power Adapter
1 * User Manual