BATTERY - SMYLE - Specialty (510) - $55

SMYLE Labs specializes in unique, discreet 510-thread cartridge batteries designed to look like everyday objects, with flagship models including the Permanent Marker ("Penjamin"), Inhaler, and Pursejamin. These compact, USB-C rechargeable devices typically feature variable voltage (usually 3 settings), pre-heat functionality, and hide cartridges (up to 4g for markers) within their chassis for stealthy, on-the-go use.