Actually there are many. I've been using this one [0] for around 2 years, with blue switches. Despite some bad reviews, I don't have any issue with it. It can be paired with up to 3 devices + wired USB, so I can swap from phone to desktop to media center with 2 keypresses.

[0] https://www.amazon.com/DREVO-Wireless-Bluetooth-Mechanical-S...