Based on the Keyball layout, this project features a redesigned PCB, mainboard replacement, and firmware rewriting to achieve wireless functionality. Available in 39, 44, and 61 key configurations. Please allow 2-3 weeks for shipping after order placement. **Features:** Compatible with low-profile keycaps. Wireless function can be turned off with a single button. Total cost = 59800 + 3500 + 1500 = 64800 yen Keyball39 Accessories ◾️Default◾️ ⚪︎ ----------------------------- - Trackball color (gray) - New case color (white) - 1 low and 1 high-profile plate - High-profile switches (Greywood v3 45g) *Included - Thumb key switch and cap (choc v2) *Included ----------------------------- ◾️Options◾️ Please specify in the comment section if needed. ----------------------------- - Trackball (PERIPRO black +2000 yen) × - Keycaps +1500 yen (A) MX switch compatible: PBT blank black OR white keycaps × (B) Low-profile switch compatible: PBT blank white keycaps ⚪︎ - Silent key switches × - Key switch specification: Lofree ghost 39 keys (+3500 yen) ⚪︎ ----------------------------- Details ◆Wireless◆ - Uses a 500mAh lithium-ion battery, replaceable. - Uses a power-saving PMW3610 trackball sensor. - Uses a certified microcontroller. - Wireless function can be toggled on/off with a single button. ◆User-Friendly◆ - Compatible with ZMK keymap rewriting. Includes user manual. - 5mm thick plate reduces typing noise. ◆Sophisticated Design◆ - Achieves a simple appearance without using TRRS cables. - Compatible with 0.91-inch OLED screen. - Compatible with both low and high-profile keycaps.