llano S850 Upgraded Type-C Wireless HDMI Transmitter and Receiver, 50M
Quick take
The llano S850 is a Type-C wireless HDMI transmitter and receiver that aims to get a laptop or compatible device onto a TV or projector without running long cables. It targets smooth 1080P@60Hz output using dual-band 5G and 2.4G transmission, with two display modes (mirror or extend). The biggest buying caveat is compatibility and setup constraints, including the transmitter needing a compatible USB-C video connection (and placement affecting stability).
Pros and cons
Pros
- Dual-band wireless (5G + 2.4G) for stronger coverage than single-band setups.
- 1080P@60Hz output support for meetings, learning, and general content sharing.
- Works in transmitter/receiver mode for automatic connection, plus a receiver-only mirroring mode.
- Includes a Type-C charging port so you can charge the source device while using it.
Cons
- Not all phones and adapters are supported, and a Type-C to Lightning adapter is not supported.
- Effective range can drop with walls or obstacles, and connection stability may depend on placement and sightline.
- Power needs are specific: the receiver must be plugged in to operate, and the transmitter can run hot under continuous use.
What buyers think
Buyer-review evidence is mixed but useful for understanding where this wireless HDMI kit shines and where buyers run into friction. Multiple reviews describe smooth, low-lag operation and easy setup for streaming saved content or projecting from a tablet to a TV. Others report connection issues tied to how the devices are positioned and the realities of sharing a single USB-C port for both video and charging. A small number of buyers report complete non-function on specific devices, suggesting compatibility can vary by phone model, OS, and whether the USB-C port supports the needed video transmission protocol.
What this kit is for
The llano S850 is built for people who want a clean “wireless desk” setup for a monitor-like experience on a larger display. It is a practical choice for home media playback, learning sessions, and quick presentations, especially when you want to avoid HDMI cables across a room.
Key features that matter in daily use
1080P@60Hz output with dual-band wireless
Rather than promising 4K, this kit focuses on 1080P@60Hz output. It uses dual-band 5G + 2.4G wireless transmission, which can help reduce dead spots versus single-band-only systems. The marketed 50M range is best treated as ideal conditions, because obstacles and wall passes can reduce performance.
Two modes for different device setups
There are two ways to connect: a transmitter/receiver mode that is intended to auto-connect once both sides are linked, and a receiver mode designed for simpler mirroring by connecting the receiver first. This flexibility can make it easier when you are switching between sources or trying to streamline a grab-and-go setup.
Charging while you use it (important with tablets and phones)
A standout usability detail is the Type-C charging port on the transmitter side, allowing you to charge the compatible source device while it is connected. This is particularly relevant for longer movie sessions or extended classroom or work use where the source might otherwise drain quickly.
Compression and codec support
The video encoding support includes H.264 and H.265 (HEVC), which are commonly used for efficient streaming and decoding over wireless links.
Compatibility and setup caveats to check first
- USB-C video and Alt Mode support: The transmitter compatibility is described around USB-C ports that support video transmission (DisplayPort Alt Mode). If your USB-C port does not provide video out, you may not get a signal.
- iOS adapter limitations: A Type-C to Lightning adapter is not supported.
- Power requirements: The receiver must be plugged into a power source to operate.
- Placement can affect stability: Range and smoothness can drop when the signal passes through a wall or when there is limited line of sight.
Pros and cons in plain terms
Good fit if you want
- A wireless HDMI solution for TVs, projectors, or similar displays without running long HDMI cables.
- A dual-band wireless approach (5G + 2.4G) for improved stability versus basic single-band kits.
- 1080P@60Hz for general content, presentations, and everyday viewing.
- Charging support during use when your source device and setup allow it.
Not ideal if you need
- Universal compatibility across every phone and every USB-C-to-adapter combination.
- Consistent performance through thick walls, or you expect the sender and receiver to work reliably from far across a room with no placement flexibility.
- A fully cable-free solution with no power outlets nearby, since the receiver needs power.
How it compares to “cable-free” alternatives
Wireless HDMI kits like this one are typically chosen over long HDMI cables because they are more flexible for quick setups and room-to-room use. Compared with Wi-Fi-based casting tools, a wireless HDMI transmitter/receiver can feel more like a direct display connection, but it may be more sensitive to RF interference and physical placement. If you prioritize absolute device compatibility across the broadest mix of phones and tablets, you may need to consider alternatives that match your exact device’s video output and supported protocols.
Verdict: is the llano S850 worth it?
The llano S850 is a solid option if you have a compatible USB-C source that supports video output, and you want a reasonably straightforward way to get 1080P@60Hz wireless display onto a TV or projector. It looks especially useful for charging-friendly setups, since the Type-C charging port can help avoid running out of battery mid-session. If you are planning to use it with a hard-to-confirm adapter (or you expect to use it through walls and without line of sight), compatibility and stability are the areas to validate before you buy.
FAQ
Does the llano S850 support charging the source device while it’s connected?
Yes. It includes a Type-C charging port so you can charge compatible phones or laptops while using the wireless HDMI connection.
What devices are compatible with the transmitter?
Compatibility is described for USB-C devices that support video transmission (DisplayPort Alt Mode), including Windows, macOS, Linux, and iOS devices with compatible USB-C video support. A Type-C to Lightning adapter is not supported.
Do both units need power?
No. The receiver needs to be plugged into a power source to operate. The transmitter does not require charging for operation.
How far can it transmit?
The advertised wireless range is up to 50M (165 ft), using the dual-band wireless connection. Walls and obstacles can reduce the effective distance and speed.
Why does the transmitter get hot?
Wireless HDMI involves transmitting high-bandwidth video, which uses significant power. Heat generation during use is described as normal.
Why would the connection drop or freeze?
Connection stability can depend on signal strength and device placement. Also, if the transmitter connector is loose or not properly seated, interruptions can occur.
Is it better for mirroring or extending?
It supports both mirror and extended display behaviors, so you can choose based on your workflow, such as presenting the same screen or using the external display space more like a second monitor.
Specifications
| Product Title | llano S850 Upgraded Type-C Wireless HDMI Transmitter and Receiver, 50M, Ultra 4K Decode Input 1080P@60Hz Output, Plug&Play 5G+2.4G and Audio for Phone/Tablet/Laptop/PC to Monitor/Projector/TV Box |
|---|---|
| Category | Electronics > Television & Video > AV Receivers & Amplifiers |
| Brand | llano |
| Manufacturer | llano |
| Model Number | s850 |
| Color | Silver |
| Item Weight | 0.15 Kilograms |
| Connectivity Technology | HDMI |
| Controller Type | HDMI |
| Other Special Features of the Product | llano S850 Upgraded Type-C Wireless HDMI Transmitter and Receiver |
| Compatible Devices | iOS/PC/Projector/TV Box |
| Total Number of HDMI Ports | 2 |
| Connector Type | HDMI |
| Audio Output Mode | 1080P&60Hz |
| Surround Sound Channel Configuration | 5.1 |
| Video Encoding | H.264, H.265/HEVC |
| Number of Channels | 6 |
| Audio Output Type | HDMI, Speakers/Headphones |
| Smart Home Compatibility | Not Smart Home Compatible |
| Wireless Technology | 5G, 2.4G |
| Format | 4K |
| Warranty Description | 2 |
| Built-In Media | Transmitter and Receiver |
| Special Feature | llano S850 Upgraded Type-C Wireless HDMI Transmitter and Receiver |
| Total HDMI Ports | 2 |
| Video encoding | H.264, H.265/HEVC |
Available variants
Color
- Orange
- Silver
- Black
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