**A Prime Line® Design!** 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). Compatible with all phones that support wireless charging. Please note, this is not a fast charger. While it will charge devices that support fast charging, it will do so at a standard speed. It is recommended to check your device specifications before purchasing to ensure compatibility. Wireless chargers operate at lower temperature than most traditional chargers. Charging pad must be connected to a power source with USB cable (via AC adapter or computer), however we recommend using with AC adapter (not included) for maximum output (which is not available with most computers). Note most cases must be removed from phone for wireless charging to work. Features LED indicator light for charge and standby. Journal with 80 lined sheets of white 70g paper. Inner paper notebook can be replaced by those found in your local office supply store approx. size: 5"w x 8"h.