Probably due to competition (ie MK808), UG802 has gone through much price dropping. It's now USD $56.99 on BuySKU, delivered.
- Rockchip RK3066 CPU @ 1.2GHz (dual core + quad core MALI400)
- 1GB RAM
- 4GB Storage
- Wi-Fi
- microSD slot
Basically by combining with a remote control (wireless mini-keyboard with USB adapter for example), this Android-based mini PC turns your TV into a smart TV. See more discussions from previous threads here and here.
These have too many issues to recommend. Spend the extra.