Features: Support 8-320Kbps MP3 audio format, beautiful voice. Infrared sensor detection, up to 4 meters. Voice files can be replaced, can copy new audio files to iSound by USB flash drive. Can download MP3 files less than 4M byte. With lock function, avoid false triggering or unwanted operation. Stable performance, can have external active speaker (external amplifier). With external trigger function(valid for low pulse). Applications. Widely applied to bank ATM, gas station, warehouse, corridor, and other occasions where need voice prompt, safety prompt, attention reminding. High quality chip. Customize your own voice independently. Free selection mode. Single or all loop play can be freeto choose more suitable foryour requirements. ABS housing. Adopt high quality ABS material, Anti-flaming and anti-aging. Independent audio chip. High-fidelity speaker MP3 sound quality. Small and exquisite, easy to install. With a group of relay switch, close when trigger to play voice, delayed turn-off time default value is 30s. Specification: Item Name: iSoundII voice prompter (human body sensing direction identification version) Material: ABS material Color: White Product Size: 86 * 86 * 41mm/3.38 * 3.38 * 1.61inch Package Weight: 200g/7.05oz Working voltage: DC 12V, AC 100~ 250V (Two choices, the two are not compatible) Induction method: human body infrared sensor Storage capacity: 4M bytes Application location: Bank ATM, warehouse, enterprise Volume size: 8 levels adjustable Detection angle: 120° left and right, 60°angle between upper and lower Power supply mode: DC12V Load: ≤600W (resistive load) Human body sensing angle: ≤60 degrees Direction recognition distance: within 4 meters For indoor use only (0 ° C ~ 30 ° C), relative humidity is less than 10 ~ Use environment: 85% RH Package List: 1 * Voice Prompter 1 * Base 1 * Accessory Kit Note: 1: USB interface - You can insert a USB flash drive, copy the voice from the USB flash drive to the internal memory, and you cannot directly connect to the computer to download the voice.