If you notice anything unusual when using this product such as abnormal noise, heat, smoke, or a burning odor: 1 remove the batteries immediately while being If you notice anything unusual when using this product such as abnormal noise, heat, smoke, or a burning odor: 1 remove the batteries immediately while being DIGITAL VOICE RECORDER DS-50 DS-40 DS-30 INSTRUCTIONS EN INSTRUCTIONS ES Thank of this document may be changed in the future without advanced notice. THOMSON DS50 Bluetooth Sound Tower. The black sound tower is the ideal item that will match in any corner of your home. Listen to music thanks to its 2.1 MPEG Layer-3 audio coding technology licensed from Fraunhofer IIS and Thomson. The product was developed based on noise-canceling technology under license from The contents of this document may be changed in the future without advanced notice. Contact our Customer Support Center for the latest information relating to DIGITAL VOICE. RECORDER. DS-50. DS-40. DS-30 ; 2. Introduction · The contents of this document may be changed in the future without advanced notice. Contact ourView and download the Manual of Olympus DS 50 MP3 Player (page 82 of 87) (English). Also support or get the manual by email.