Here is a compact laser engraver with Bluetooth lets you print images on a piece of wood. The NEJE DK-BL Bluetooth Laser Engraver supports multiple engraving effects. It can connect to iOS and Android devices. This 1500mW laser machine has a 6000mAh battery and lasts up to 3 hours.
This machine has a laser engraving area of 42*42*78mm. JPEG, BMP, TIFF, and other common image formats are supported.