iHold APlus Professional Music On Hold Player with EZ Voice Over for all PBX / KSU key system telephones or phones with "MOH" input | mp3 | USB flash drive | SD card Music and messages On Hold plus EZ Voice Over feature for all multi-line PBX /KSU phones, more compact - not bulky, not heavy - easy to install with both RCA and 1/8" jack (3.5mm) head phone style connector | Music On Hold player with 1 FREE custom Voice over message with EZ Voice over support + 1 click Holiday mode switch Works great when customers use a cell phone! (unlike other products on the market), superior sound quality on any phone system with "MOH" connector input Preloaded USB Flash drive with over 50 files included | Preloaded SD card with over 20 Voice over files included | Plug and play - hours of royalty free music and thank you for holding messages plus FREE custom Voice over | built-in speaker - Monitor the audio on the device directly - Place on a shelf or easily mount to any surface via built-in wall mount included Auto start -auto play after power loss, automatically starts playing after power is restored | both USB drive and SD card included | 1 click Holiday switch so convenient! 1 year parts & labor warranty, includes 1 FREE custom voice over file plus Free Audio Music editor & Recorder software for PC (Windows 10, 8, 7, Vista, XP) and Mac, 128MGB USB thumb drive and SD card preloaded with hours of royalty-free music, rca cables, 1/8" connector, wall mount screws, power adapter 110 / 220 VAC - 5VDC @1500mA and manual