The 42LY340C is 42-inch LED integrated HDTV with multi IR function, this eliminates the remote control signal interference between TVs in multiple dwelling rooms. The LCD panel has brightness of 300cd/m², 4,000,000:1 dynamic contrast ratio and support 1920 x 1080 resolutions. The USB Cloning feature allows to simply copying the TV settings onto all TVs using a USB stick, a process that is fully automated to save time without having to set each TV one by one. The mobile high definition link connects smart phones to the TV instantly, mirroring content in HD quality, just like connecting a PC through an HD cable.

The display includes RS-232C port that can control multiple TVs' power and volume settings simultaneously. The plug and play function with compatible remote jack pack enables guests to view media from their portable devices on the TV screen seamlessly. The IR out enables customized set-top boxes to receive IR signals via LG TV Signage. This added convenience requires only simple connections and allows easy management using a single remote control.