PU, ABS plastic;Refillable journal with PU Cover and built-in ABS plastic wireless charging panel.; Power/Technology: Input: DC 5V/1.5A; Output: DC 5V/0.8A (Wireless); Conversion efficiency: ?70%; Charging methods: induction model; Working Frequency: 100-205 kHz; Conversion efficiency: ?63%; Wireless Charging Distance: 0.15" to 0.23" (4 to 6mm).; Wireless charging mat feature is designed to charge most remote wireless charging enabled smartphones (including iPhones 11, 11 Pro, 12 and 12 Pro). Check your device specs for compatibility prior to purchase.; Wireless chargers operate at lower temperature than most traditional chargers.; Features LED indicator light for charge and standby.; Note most cases must be removed from phone for wireless charging to work.; Journal with 80 lined sheets...