[Compatible] The charging coaster ONLY compatible with temperature control smart mug both 1 and 2 Generation and travel mug - !!!Mug is not included, not a regular mug warmer [Upgrade Design]The charging base upgrades from 2-pin to 8-pin connectors. We've added extra pins to prevent breakage so that your charger lasts up to 4 times longer than the life of the original two-pin design! [Specification]Input: 100-240 V 50/60 Hz 1.0 A Max; Output: 19 V 2.1 A; Cable length: 1.8 M / 5.9 Ft; Coaster Diameter: 11 cm / 4.3 inch; Color: White [Perfect Replacement] Designed for the temperature control smart mug, with non-slip design, this charging coaster is a perfect fit for your mug. It is compact and powerful enough to safely charge your mug [Safety & Durability] Designed for safety and longevity, this charging base features built-in over-voltage, over-current, overheating, and short-circuit protection. It delivers stable, efficient charging for your cup — durable and reliable Charging Coaster 2 Compatible with Temperature Control Smart Mug 2 and Mug 1 - Mug Power Cord - Charger Dock Base for Wireless Warmer Cup Accessories - White