Docooler Qi Wireless Charger PCBA Circuit Board with Qi Standard Coil DIY Wireless Charging Accessory Micro USB Port Qi wireless charger PCBA circuit board, allows to charge for any Qi-enabled device. Better for DIY, you can give it a case (not too thick) or fix it on your furniture or other devices, but please note the transfer efficient distance is only 5mm. High power, quick-acting charging. Over 75% high-efficient energy conversion. Ultrathin, lightweight, safe and reliable.