Texet DVD laser lens cleaner for Blu Ray™ Disc and HD DVD Device including PS2/3 and DVD Players. It is recommended that you clean the lens every 3-4 weeks to maintain the laser lens of you DVD/Blu Ray™ player.To use, put the cleaner into the carrier of DVD player by following the directional arrow. Press play for running the cleaner and follow the instructions given by the interactive guide shown on the screen. Please place the DVD lens cleaner back in its case after use for safe keeping and to avoid damage. Texet DVD lens cleaner comes with voice guide in 11 different languages and music.