1、Automatic Playback: Motion sensor sound player adopts infrared sensor technology, sensing distance 0 to 4 meters, 120 degree angle, sensitive sensing. Automatic playback of speech, music, advertising. 2、Long Battery Life: Motion activated sound player is built in 1250mAh lithium battery, long battery life. Fully charged state, 50 times a day playback, voice length of 10 seconds, can be used for about 30 days. 3、Replaceable Files: This motion activated voice player is easy to use, support USB to replace voice files, store 4M voice. Customizable music files, download music files through computer. 4、Adjustable And Beautiful Sound: IR motion sensor voice player adopts MP3 playback program with beautiful sound quality and adjustable volume to meet the needs of different scenarios. 5、Multiple Applications: This infrared motion sensor sound player speaker is perfect for exhibitions, welcoming guests at the door, providing directions to others when you are leaving, and also suitable for indoor holiday music decorations. Item Type: Motion Sensor Sound Player Material: ABS Battery Type: Lithium Battery Battery Capacity: 1250mAh (Included) Sleep Current: ≤40uA Playback Current (Maximum): ≤330mA Sound Output Power: 8Ω2W (Typical Value) MP3 Sound Format: 16-320Kbps Induction Range: ≥4m/13.1ft (-20°C to 40°C) Volume: ≥100dB Working Time: Fully charged, 50 times playback per day, 10 second voice, approximately 30 days of use 1 x Motion Sensor Sound Player 1 x User Manual 1 x Set of Mounting Bracket (2 Pieces)1 x Data Cable 1 x Screw Accessories Pack 1 x Double Sided Sticker 1 x Adapter