Features:

• Small and exquisite with MP3 high-quality audio output.
• Equipped with a PIR motion sensor to trigger audio playback, and detection range can be up to 4 meters.
• Works with most Windows, Mac, and Linux systems.
• Incorporates 2MB built-in flash memory as the standard internal memory.
• Uses micro SD card or 2MB built-in internal flash memory as storage. (choose one of both).
• Reads audio files directly from micro SD card (up to 32 GB). (micro SD card sold separately see below)
• To copy sound files to the built-in flash memory you need a micro SD card. You copy the audio files previously loaded on to a micro SD card to the built-in flash memory. (The micro USB port is only used as an alternative way to power the device - instead of using batteries if desired)
• Supports two triggering modes: 
  • Mode 1: You add multiple sound files to the unit. The unit will play the next sound with each activation.
  • Mode 2: Play the same sound with each activation.
    (The module is switched between Mode 1 and Mode 2 with a long press (3 seconds) of button A)
• Supports two power supply methods:
  3 x AAA alkaline batteries (not included) or 
  External power adapter through the micro USB port.
• Two-level sound volume adjustment.
• For indoor use only.
• Dimension: 60*90*26.60mm
• Pivoting wall mounting foot included

Datasheets:

• http://www.electronics123.net/amazon/datasheet/Mini%20PIR%20Motion%20Sensor%20Activated%20Audio%20Player(FNP-703A).pdf
• www.electronics123.com/page/faq-fnp-703a