Smart USB Coffee Mug Warmer (Auto Shut-Off)

My coffee stays hot for 4 hours now

Smart USB Coffee Mug Warmer (Auto Shut-Off) — a slim heating coaster that keeps your coffee, tea, or cocoa at the perfect sipping temp all morning. Gravity sensor auto-shuts-off when you lift the mug, auto-resumes when you set it down. USB-powered, fits any flat-bottom mug.

• Keeps drinks at ~131°F (55°C) for hours
• Auto on/off gravity sensor — safe to leave plugged in
• USB-powered, works with laptop/power bank
• Fits any flat-bottom mug or cup
• Slim coaster design — no desk space lost

Free shipping over $25 • 30-day returns • Ships in 1-2 days