Description
See the product in action here!
SterlingKey™ uses an ESP32 with Bluetooth® connectivity, allowing seamless wireless typing across multiple devices.
Premium colors are printed using SLA technology with post processing, that produce a smooth finish and no visible layer lines. There might be light sanding marks on the Premium Black ones.
Basic colors are printed using FDM technology which has some visible layer lines and a rougher finish.
Metallic colors have a highly glossy finish and they look metallic. They are printed using FDM technology, but at a higher precision compared to the Basic colors.
Included:
- Angled 20cm Type-C to USB-A Cable
- Samsung 50G 53E 5330mAh Battery
- Using your own battery? Make sure it’s an unprotected (flat top) 21700 for proper fit
Useful links:
Estimated Delivery Times
| Region | DHL Express | DHL Global Mail |
|---|---|---|
| Europe | 1–2 business days | 2–6 business days |
| US & Canada | 2–5 business days | 5–9 business days |
| Rest of World | 3–6 business days | 6–20 business days |
Estimated delivery times are calculated after your order has been processed and handed over to the courier. For shipping outside the EU, customs export clearance may add 1–3 business days.
Batteries cannot be shipped via DHL Global Mail, which is handled by Deutsche Post (local postal service).
Due to recent changes in US customs, I will not be shipping to the USA via DHL Global Mail. For DHL Express shipments to the USA, please expect approximately 15–20% in customs duties.

























Headline: Works well!
I purchased this for my ZSA Moonlander and so far I’m happy with it. It was able to connect to my Arch Linux setup fairly easily and even works with the layer switching and mouse functionality that the Moonlander offers.
Great product worked perfectly!
Alex helped me make it work on archlinux because I was missing some dependencies I had no idea about, he’s the goat highkey
Great shipping times, especially for US customer, product arrived and works without issue.
The product works as advertised, no issues when I used it with CharaChorder + MacOS / Linux.
Possibly the best and most useful tech gadget I’ve purchased in a long time. Update the firmware to 3.0.0 (via a Chromium browser) and it’s flawless. My stupidly expensive custom mechanical keyboards can now function wirelessly from the couch without any soldering or modding required. HIGHLY RECOMMEND. You won’t be disappointed.
This works well—simply plug in the AC power and turn off auto-sleep.
Good Device and fast and friendly customer support!
Works flawlessly and switches instantly between devices
Amazing product and works flawlessly.
Headline: Works great + awesome developer!
Before I even made the purchase, I reached out to Alex and asked if one of my specific keyboards would work. He was very helpful and even offered to write updated firmware if it wouldn’t work. It did end up working out of box, and I’m very pleased with it. Thank you so much for the amazing product, my setup feels so much cleaner now!
Excellent product, tried it with doubts, never going back to wired. 5/5
I recently purchased from Sterling Hawk and had a positive experience. The USB to Bluetooth kit solves my problem. The ordering process was straightforward, and my item arrived as expected. I appreciate the clear communication and prompt delivery.