In short, wireless power transfer (WPT), also known as wireless energy transfer, is the transmission of electrical energy from a power source to a receiver without the use of interconnecting wires.

D’Addario has launched the XPND Pedal Power Battery Kit, a wireless pedalboard power supply that offers over 10 hours of playing time from a single battery charge. At the heart of the XPND Pedal ...

so having a portable charging source is one of today’s necessities. Annoyingly, most power banks require you to carry around a cable, too. Wireless power banks do away with cables but come with ...