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Ships within 48 hours · Estimated delivery Aug 13 - Aug 18
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Description
903S WiFi HD Video Transmitter for Car, with Bus Rear View Surveillance Camera, Bus Rear View Surveillance CameraFeatures: 1. Support audio video at the same time, the picture quality is clearer, the picture is not cut, can support multiple mobile phones to watch video at the same time, can display 3D dual screen, support mobile phone recording, support device side recording (need to add memory card) 2. Users can make full use of smart terminals as displays and video recorders during FPV flight, which is simple and convenient 3. Input the AV signal of the image
Features:1. Support audio/video at the same time, the picture quality is clearer, the picture is not cut, can support multiple mobile phones to watch video at the same time, can display 3D dual screen, support mobile phone recording, support device-side recording (need to add memory card)
2. Users can make full use of smart terminals as displays and video recorders during FPV flight, which is simple and convenient
3. Input the AV signal of the image transmission receiver, the forwarding distance (unobstructed) is greater than 150 meters, and it can also be used directly
4. Under the condition of inputting the AV signal of the image transmission receiver, no signal and weak signal are all snowflakes, which can save your love machine to the greatest extent
5. Wirelessly send to Android, IOS system mobile phones or tablets via WiFi, WiFi has no interference to 2.4G remote control
6. The APP software is simple and easy to use, supports display, zoom, video, screenshot and playback, and supports setting hotspot passwords
7. 9-30V wide voltage DC power supply, with power output port at the same time, convenient for power supply for image transmission
8. Support Android 4.3 or higher system version, support IOS 10.3 or higher system version
9. The delay is small, not more than 150 milliseconds for Android phones and tablets, and about 100 milliseconds for IOS phones and tablets
10. Suitable for wireless surveillance, video recorders, wireless rearview cameras, set-top boxes, engineering treasures, etc.
Product parameters:
1. Transmitting frequency: 2400MHz-2483.5MH
2. Transmission distance: more than 150 meters
3. Video input format: CVBS (NTSC/PAL)
4. Video input amplitude: 1.0Vp-p
5. Video input impedance: 75 ohms
6. Video frames: 30fps
7. Video format: VGA
8. Video compression: H.264
9. Wireless support: IEEE 802.11b, IEEE 802.11g, IEEE 802.n (1T1RModes)
10. Power supply: DC 9-30V
11. Current: 250mA
12. Encryption mode: WPA2
13. Waterproof: yes
14. Weight: 80g+/-5g
15. Dimensions: 78x43x18mm
16. Working temperature: -10-50 degrees celsius
Packing list:
Transmitter x 1
Signal bar x 1
Power cable x 1
Bus surveillance camera x 1
Manual x 1
Tape x 1
Strap x 2
Specification:
| Package Weight |
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 9 reviews
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Product Reviews
★★★★★ 5
Great item!
works great. I can plug my backup into it and my printer, so I don't need to connect the printer to the internet.
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Reviewed in the United States on April 28, 2026
★★★★★ 5
Grub for a good price you wont be disappointed
**Works wonderfully with Apple devices** Plugged the hub into an M2 MacBook Air and everything was recognized instantly: the 4K @ 60 Hz HDMI output displayed crisp colors, the 100 W PD pass‑through kept the laptop charged at full speed, and the SD/TF slots read cards without any lag. The same seamless experience repeated on an iPad Pro 2024, proving the hub s broad Apple compatibility.
**Good flexible cables & build** The included 1 m USB‑C cable is surprisingly supple; it doesn t kink when you bend the hub around a laptop stand, and the strain‑relief sleeve prevents the connector from pulling out. The hub s aluminum body feels solid yet lightweight, and the rounded edges match Apple s design language, giving it a premium look that blends nicely on a desk.
**Ethernet port performance** The Gigabit Ethernet port delivers stable, low‑latency connections even when the hub is powering the laptop at 100 W. It s a reliable fallback for Wi‑Fi‑poor environments
**Overall impression** The Revodok 7‑in‑1 hub hits the sweet spot between functionality and aesthetics. It provides everything a Mac‑centric workflow needs high‑resolution HDMI, fast data ports, card readers, and robust Ethernet while looking like an extension of Apple s own product line. For anyone juggling multiple peripherals on a MacBook, iPad, or even a Steam Deck, it s a solid, hassle‑free solution.
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Reviewed in the United States on December 20, 2025
★★★★★ 5
Reliable Dongle
Works well! Very helpful for work and has all the connector ports I need. Never have trouble connecting with this.
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Reviewed in the United States on May 20, 2026
★★★★★ 4
Works perfectly aside from how hot it gets
The ability to add more ports to my different devices has been very helpful. I’ve tested it on my tablet, phone, desktop, and laptop and it’s worked exactly how I needed to. The only issue I’ve had with it is how hot it gets when using it especially when it’s using pass through charging. It will get noticeably hot when you touch it
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Reviewed in the United States on April 15, 2026
★★★★★ 5
Worked great (quick test)
Just got this and did a quick test on both steam deck and Nintendo switch and it worked great
I first plugged in Ethernet and then added HDMI and then power
On the steam deck all three worked as they were plugged in
On the switch nothing worked until the power was plugged in, then everything worked, this is expected for hdmi but it seems like Ethernet should have worked in isolation. I unplugged hdmi and then power and as soon as power was disconnected so was the internet connection. This is trivial and maybe expected but I figured it was worth noting
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Reviewed in the United States on May 31, 2026