1、Aluminium Alloy: Made with a durable and waterproof metal shell, this voice prompter can withstand long term use and various environments. 2、12V DC Power Supply: Suitable for various vehicles and power systems, offering convenient and flexible installation and use. 3、Infrared Wireless Connection: Utilizes advanced infrared technology, eliminating the need for complex wiring and connections, providing convenience and efficiency. 4、Multifunctional Voice Prompt: Supports customizable voice prompts, reminding drivers of their vehicle's status, warning messages, and more to ensure driving safety. 5、Easy Installation: Compact and lightweight design allows for quick and simple installation, suitable for various vehicles and locations. Item Type: Motion activated sound speaker Material: Aluminium alloy Weight: Approx. 750g / 26.5oz Product Size: 16x11x4cm / 6.3x4.3x1.6in Power Supply: DC12V power adapter Standby Current: ≤20mA Play Current: ≤600mA(maximum) Sound Format: MP3 Sound Output Power: 8Ω 10W (typical) Sensing Distance: ≥4 meters (-20-40℃) Volume: ≥100dB (1 meter distance) Button Function: Volume: Short press to turn up the volume(6 level loop without mute) Shift: Short press to switch to next sound(loop) Voice Change for USB Flash Drive: 1. Copy the prepared MP3 format voice to the USB flash drive that has been formatted as FAT32. 2. Insert the USB flash drive into the USB interface of the product. 3. Simultaneously press the volume button and the shift button for 3 seconds until the red light flashes. 4. When the copying is completed, the red light stops flashing. Unplug the USB flash drive to complete the copying process. Voice Playback Interval and Relay Time Adjustment: 1. First, copy the MP3 voice to the voice USB flash drive. 2. Copy or send the Config.txt file to the USB flash drive (this file is not required if no settings are needed). The creation of the Config.txt file is as follows: (1) Create a new Notepad on the computer and change the file name to Config. When the file is opened, the settings are as follows: sp00// cl00// cf10 10 06 00// (2) sp00: sp is a lowercase English letter, indicating that power on playback is not enabled. The "//" must be retained. cl00: cl is a lowercase English letter, indicating no loop playback. The "//" must be retained. The settings are as follows: cf: cf is a lowercase English letter, indicating the flag for relay delay disconnection. The "//" must be retained. 10 10: Relay closure time, where the first 10 indicates a relay closure time of 10 seconds; the second byte 10 is for reconfirmation, and these 2 times must be the same. A space is added between every two digits after the English letters. The delay disconnection time range is 00-99S. 06: This byte represents the interval time between two human body sensing triggers. 06 means that the time from the end of voice playback to the time when the voice can be triggered again is 6 seconds, and the trigger interval time is 05-99S. 00: Other function settings are reserved, and there are no specific functions in this version. Enter 00 when setting. Product Features: 1. DC12V power supply mode. 2. Supports volume adjustment and sound selection. 3. Supports voice replacement via USB. 4. 8Ω 10W speaker, with loud sound. 5. Supports 6 level volume adjustment. 6. Has external trigger function (low level effective). 7. Comes with a group of relay switches, which will close for a default delay of 30 seconds when triggering voice playback. 8. Supports setting of playback interval time and relay time. 1 x Motion Activated Sound Speaker Set(14PCS Parts) 1 x Power Cable