TJ노래방 POS is an Android application designed for real-time monitoring of karaoke room status and sales. Developed by TJMEDIA CO. LTD., this free app allows users to check room status, sales, and manage room rentals and services from their smartphones, even outside the karaoke room.

The app is compatible with TPOS-10, a karaoke machine management device, and can be used to check the status of each room, including occupancy status, remaining time/coin quantity, payment status, and service history. Users can also view real-time sales and detailed sales information by day, period, day of the week, or year.

In addition, the app allows users to input time/coin information for room rental and service sales. However, it is important to note that the app requires TPOS-10, a shared router within the karaoke room, and smartphone settings for proper use. For more information, please refer to the "Mobile Settings" section of the TPOS-10 manual.

Please note that TPOS-10 and smartphones can be connected up to three devices for maximum compatibility.