BTXETUEL SayoDevice OSU O3C Rapid Trigger Hall Switches Magnetic Linear Switches Keyboard with Knob and Screen,Copy Paste,Shotcut,Macro Hotswap Mini Keypad.…

Very well made. Nice design and functionality

12 year old was able to program on his own and is thrilled with performance of this Sayo. He uses it for Geometry Dash game. You can use it with an iPad or laptop. Great tutorial by a British young man who teaches how to program it for iPad usage.

Good price for 8000 hrz pulling rate and rapid trigger

The BTXETUEL SayoDevice OSU O3C is an excellent tool for improving gaming performance, but it’s extremely difficult to connect it to a computer—especially to a MacBook, in my case. Once the setup page opens in the browser, all the instructions are in Chinese, and clicking around randomly doesn’t seem to help at all. I eventually managed to get my computer to connect to the device, but I honestly have no idea what I did to make it work. The developers really need to put more effort into this aspect, otherwise it’s almost discouraging to invest in a gadget that appears not to function properly. However, once this nightmare is over, the device is very enjoyable and effective to use.

Both of my boys have these and love them. Surprisingly, for as long as they’ve been using them and as much of a beating as it sounds like the thing is getting during hours of gaming, it has held up for over a year and counting! No complaints- great product!

Good usage and easy to setup

if u play gd buy this trust its so responsive and the 8k polling rate with improve ur gameplay and the web software is peak

The keypad is pretty good, nice construction, but very loud. If you do use it on a bare table even with iems its obnoxiously loud. It's preferable to use a deskmat or mouse pad to deaden the sound. There is no guide that comes in the box of how to setup rapid trigger. Rapid Trigger Guide: Hold down the volume Knob, Go to Button>Key stroke>spin knob to select a key Trigger: 1.50mm (Actuation point) Release: 1.40mm (Reset point) ^Normal key acutuation point, when your key press travels 1.50mm Rapid trigger start. recommend setting to your mechanical keyboard acutuation point or slightly less between 1 to 2mm. RT Top: 0.65mm (Rapid Trigger Top Border) RT End: 3.95mm (Rapid Trigger Bottom Border) ^ Zone in which rapid trigger works, If you go above the RT Top when you let go of the key you have to press 1.50mm to trigger Rapid Trigger. RT Trigger: 0.25mm (Rapid Trigger Trigger Sensitivity) RT Release: 0.25mm (Rapid Trigger Reset Sensitivity) ^ It dictates how much your key needs to travel for Rapid Trigger to send a press, so 0.25mm (RT Trigger) of travel to have an input and 0.25mm (RT Release) to reset within the Rapid trigger zone *Osu subreddit has a guide on Rapid Trigger, you can check that out if mine doesn't make any sense Keybinds: Sayodevice.com/key Click “search sayodevice”, pair your device. Select a key, click “general key”, find keybind, press ok and press submit. How to sound deaden in a jank way, buy a 2mm thick sheet of silcone with tape on it. Cut a piece the shape of the empty space on the bottom of the keypad and stick it on. Cut another piece the shape of the keypad. Take the plastic film off the silcone and stick it on the silcone in a corragated cardboard pattern, it needs those bubbles to sound deaden. Use some tape and tape it to the bottom of the keypad. Now it’s half as loud.