Voxlink Qi Wireless Power Charger for iPhone Samsung Galaxy S3 S4 Note2 Nexus, Blue Plug and Play Qi Standard. Easy to use C simply drop phone to start charging. Anti-slip grip to protect the devices from scratches. Universal compatibility for all QI enabled wireless charging devices or devices with QI receiver. Power Source: Any charger 500-2100mA with USB port with Micro USB cable, or even plug it directly into computer or TV. Input: 5V / 500mAh to 1500mAh; Output: 5V, 1A max; Dimensions: 2.5" in diameter. 0.5" thick. Weight: 185g / 6.5oz