ASUS has launched two flash accessories for their Zenfone devices.
The bigger of the two is the Xenon flash dongle, ZenFlash, which connects via USB OTG, and provides 400 times stronger flash than the regular LED flash. It sticks to the back of the phone as pictured in the above image.
The second one is the Lollipop shaped LolliFlash, a dual-tone LED torch, which has its own battery, and connects to the headphone jack of the phone. It comes with three filters Red, Blue and Yellow. You just have to turn it on or off while taking a selfie.
There is no word on the pricing or the availability of the flash accessories yet. It is unclear whether they would work on non-ASUS phones either.