It is a HDMI extender while using CAT-5E cable as transmission media.
Benefits from using HE002:
1) The length of HDMI cable is fixed and unchangeable after it is produced. Because the HDMI connector can only be soldered or terminated by professional worker in factory, the users can not reduce or increase by themselves. However CAT5E cables are available everywhere and be processed easily by the user or installer.
2) When cabling in hidden method, because the header of long HDMI cable is big, and so is the cable. So it is not easy to bend the HDMI cable and pull it through the in-wall tube or tray. However, CAT-5E cable has no such problem.
3) By using HE002, the transmission distance can up to 30 meters. For general HDMI cables, cables must be customized when the length over 10 meters. 
Features:
-One pair as a full functional module, no need of setting.
-Use CAT-5E cable to substitute HDMI cable to achieve long distance transmission.
-Follow the standard of IEEE-568B.
-Transmission distance reaches up to 30 meters.
-Auto-adjustment of feedback, equalization and amplify, the user does not need to care about
The length of the cable.
-Compact size.
-Signaling rates up to 2.25Gbits in support of 1080P display.
-Each port supports HDMI or DVI inputs.
-HDCP compliant.
Package Contents:
1) Main unit NO. 1 P/N_HCl0101A
2) Main unit NO. 2 P/N_HCl0101B
3) 5VDC Power Supply.
4) Operating Instructions.
Connect And Operate:
1) Connect the HDMI input sources such as: HD-DVD, PS3, STB etc. )
Into P/N_HCl0101A.
2) Connect two CAT-5E cables to both the outputs of P/N_HCl0101A
And inputs of P/N_HCl0101B.
3) Connect the HDMI output( such as: HD-LCD, HD-DLP)into P/N_HCl0101B.
4) Plug the power into P/N_HCl0101B. Supports with HDMI1.3b. High performance up to 2.5Gbps Supports 25Meters HDMI Cable on both ends of the Switcher
Maintains high resolution video - beautiful, sharp HDTV resolutions up to 1080p, 2k, 1440p graphics and computer resolutions up to 1920 x 1200 are easily achieved
Discrete IR remote (included)
Features:
Plug: PVC Molding shell HDMI cable
Braid: PVC jacket or durable outer Nylon braid, more than 30 kinds of braid colors are available
Guage: 30AWG, 28AWG, are available for this item
Connectors: 24K gold plated or nickel plated
Length: 1m, 2m, 3m, 5m
3ft, 6ft, 10ft, 15ft