Wireless phone chargers feature a charging surface that connects to the in-wall power supply via USB. Compatible smartphones can be laid onto this surface to charge with no need to connect a cable to the phone's charging port. Ideal for use in the office or at home, these chargers will charge most devices, provided they support the same charging standard, with no need to carry additional cables. While most wireless chargers are designed with a lay-flat charging surface, some double as stands, allowing the user to watch video media while charging takes place.