JBL GO4

Magnetic Automatic Absorption: Built-in 36 magnets, a strong magnetic attraction which enhances coil alignment and improves charging efficiency.
NOTE: Use only USB-C 18W or above adapter for fast wireless charging your device (Adapter not Included).
Overcharge Protection: No need to worry about over-charging or heating the device, so you can sleep well at night.
Ultra-Thin Design: Use of high-quality light and thin materials which makes the appearance more stylish and simpler