Compatibility : Compatible with Galaxy Watch 4 (40mm SM-R860, 44mm SM-R870/SM-875), Galaxy Watch 4 Classic (42mm SM-R880, 46mm SM-R890 /SM-R895)- Built-in Strong Magnet : Built in high-quality magnet & copper core inside, the outer layer is protected by high-quality soft Insulated TPE jacket, provides Perfect charging experience.- NOTE : Please make sure that your charging CURRENT is BELOW 1A. We suggest that you charge your dock through computer USB port and do not use fast charger- Long Lasting : Made of premium material, Power protection inside prevents the watch from being damaged by over current and avoid overheat when connected to USB power source.- Services & Includes: Wireless Charger Inductive Charging Station Cable, If you have any questions and issues, Please contact us . . .