Just purchased two from Amazon , I purchased this before and works super fantastic with my Iphone and Samsung galaxy S9.
just note : it comes with no adapter .
similar item is selling on Amazon for $55
Fast Charge & Wide Compatibility: Fast Charges up to 10W Qi-enabled and Quick Charge devices like the Samsung Galaxy S9/ S9+/ S8 / S8+ / S7 / S7 edge / S6 edge+ / Note8; or charges Qi-enabled, non-Quick Charge devices like iPhone X / 8 / 8 Plus at a standard 5W
Safer Qi Charging: Qi certification pairs with overcurrent, overheat, over-voltage, and short circuit safeguards; comes with RAVPower’s 18-month warranty
Tips for Optimal Usage: Charge full throttle by using a 15W or higher QC2.0 / QC3.0 adapter; simply equip your device with a Qi receiver if it’s not Qi-enabled out of the box. Does not charge through metal phone cases or cases thicker than 3 mm
Note: Please remove all metal cases and metal or magnetic objects from the back of your phone prior to wireless charging, as these may overheat and damage your device.
Discreet, Informative LED Indicator: Low-key, yet fully visible LED light turns blue or green to indicate whether it’s in standby or charging respectively
Bought one a couple of months back as well, works well.