This is an LG CineBeam DLP projector, model PF50KS. I purchased it new on Amazon in 2018, and I no longer need it as I haven't used it in the past few years. The warranty has already expired. Due to the deterioration of the built-in battery, it cannot operate on the built-in battery alone, but it works when connected to the power cable. It has been stored at home, and there are no smokers or pets. The power-on time is 156 hours, which is considered low. Please understand the battery condition before purchasing. [Brand] LG [Model Number] PF50KS [Color] White Thank you. PF50KS (DLP, 600lm, Full HD) Brand: LG Electronics CineBeam Projector Features: Portable, Pico Projection Method: DLP Brightness, Luminous Flux (lm): 600.0 lm Resolution: Full HD (1920 x 1080) Video Terminals: HDMI, USB Projector Functions: Distortion Correction, Keystone Correction, Built-in Battery, Bluetooth, Built-in Speaker Smart TV OS: webOS Weight (kg): 1.0 kg