It's getting tougher and tougher for phone makers to differentiate.

So LG's latest bright spark appears to be a phone that integrates an ultrasound mosquito repeller in its back hump, in an effort to appeal to users in India.

The K7i's sound emitting gadget works on a similar basis to devices we've had for years on the market, which emit ultrasonic waves inaudible to humans, to repel mosquitos. LG already includes this in other home appliances it makes, such as air conditioning units and even TVs.

The "Mosquito Away" K7i phone is really LG's existing midrange K7 Android smartphone, with the speaker as a removable back case.

When you buy the K7i, LG will throw in a regular flat case that'll help your phone fit into a pocket more easily — but that will also take away its mosquito-repelling abilities.

The Rs. 7,990 ($121) device isn't going to impress anyone with its specs, honestly. With a five-inch screen capable of lower than HD resolution, and a mid-range quadcore chip, you're better off looking at other devices on the market that won't cost much more.

This one looks more suited for an elderly user who'd see the mosquito gimmick as a valuable addition.