Overview
The DDMALL HED-4KW is a wireless HDMI encoder supporting seamless AP roaming on the LAN without interrupting video transmission, while the HDD-20W is a wireless HDMI video decoder for IP stream decoding. Both the encoder and decoder are with built-in 5G+2.4G Wifi anntena for network connection, streaming without cable issue.
The HED-4KW Parameters
| General |
| Power Supply | 5V/1 A （USB cable powered） |
| Power Consumption | 3.4W |
| Operating Temperature | -10~55℃ （14~149℉） |
| Storage Temperature | -20~85℃ （-4~185℉） |
| Operating Humidity | 10%- 90%RH (Non-condensing) |
| Weight | 46.4g/0.102lbs |
| Dimension (L*W*H) | 110.2×38.4×18.45mm/ 4.34×1.52× 0.73in |
| MTBF | 30,000H |
| Video |
| Input Standard | HDMI 1.4A |
| Video Codec | H.265/HEVC and H.264/AVC |
| Supported Protocols | SRT, HLS, RTP, RTSP, RTMP, RTMPS, UDP, TCP, Low Latency, Multicast and Unicast. |
| Supported Input Resolution | 2160p@30/25/24Hz, 1080p@60/50/30/25/24/23Hz, 720p@60/50/30Hz |
| Supported Local Loop-Out | 2160p@30/25/24Hz, 1080p@60/50/30Hz, 720p@60/50/30Hz, 960×720@60/50/30Hz, 960×540@60/50/30Hz, 640×480@60/50/30Hz, 360×200@60/50/30Hz. |
| Supported Output Resolution |
2160p@30/25/24Hz, 1080p@60/50/30Hz, 720p@60/50/30Hz, 960×720@60/50/30Hz, 960×540@60/50/30Hz, 640×480@60/50/30Hz, 360×200@60/50/30Hz. The frame rate can be selected by yourself. The primary stream supports a maximum of 3840*2160@30Hz， secondary stream supports a maximum of 1080p@60Hz |
| Video Bitrate |
128Kbps~64Mbps |
| Audio |
| Input Standard | HDMI |
| Audio Encoding Format | G.711u, AAC |
| Audio Bitrate | 32kbps~256Kbps |
| System |
| Wireless Standard | 802.11a/n/ac 5G，802.11b/g/n 2.4G |
| Control Method | Web UI |
| AP Mode Wi-Fi Info | SSID：HED4KW；password：12345678 |
| AP Mode Default IP | 192.168.1.252 |
| Default Web UI Login Credentials | user/password: admin/admin |
| GOP | Tunable |
| Compression Profile | BaseLine, Main, High |
The HDD-20W Parameters
| Power Supply | 5V/1 A （USB cable powered ) | Power Consumption | 2.6W |
| Work Temperature | 10~65℃ （14~149℉） | Storage Temperature | -20~85℃ （-4~185℉） |
| Work Humidity | 10%- 90%RH (Non-condensing) | Product Weight | 25g/0.055lbs |
| Product Dimension | 75x32x15mm/2.95x1.26x0.59in | MTBF(mean time between failures) | 30,000h |
| Video Input Standard | HDMI 2.0 | Video Codec | H.265/HEVC and H.264/AVC |
| Supported Protocols | RTSP, ONVIF, UDP, TCP, | Supported Output Resolution |
3840*2160p@60/50/30/25/24Hz, 1920*1080p@60/50/30/25/24Hz, 1920*1080i@60/50Hz, 1280*720p@60/50Hz |
| Supported Stream Input Resolution |
3840*2160@60/30Hz,1920*1080p@60/30Hz, 1280*720p@60/30Hz |
Audio Input Standard | HDMI embedded audio input, 3.5mm analog |
| Audio Encoding Format |
G.711u, AAC |
Compression Profile | BaseLine, Main, High |
| Control Method |
Web UI |