smaate Magnetic Charger , Cord A is for Smart Watch ID205L ID205U ID205S SW021 SW023 Uwatch 3, whose app name is Veryfitpro, Cord B is compatible with P22 Donerton, Popglory Hero Band III 1.4 inch smart watch and LW31. Universal charger for device with 2 Charging Pins’ Gap 2.84mm. Please measure the distance between the 2 charging points of your device, if not it is not 2.84mm, please do not buy this product. There are 2 chargers in the pack, BUT ONLY ONE will fit your device, one is Black, the other is White. Two chargers have opposite electrical polarity. Charger BLACK： N+-S Charger WHITE: N-+S If the Black one does not charge your device, please try the white one. Please unplug the charger after you finish charging, because the magnetic points may be absorbed on the metal. Distance between Charging Pins: 2.84mm Length of Cable: 60cm Max. Current: 1A Max. Voltage: 5V 2-PACK: 1A, 1 B; There are Build-in Short-circuit protection IC in our charger. If the charger meet short- circuit situation, the protection IC will cut off the circuit automatically. The product is suitable for charging smart watch, fitness tracker, kids' watch, e-cup, which need magnetic charger with 2.84mm distance charging points gap.