Please note, this item ships from an international seller. Expected delivery is 10-15 days. Features: * Preset 10 tracks in both Chinese and English for option. Voices in different languages can also be customized according to users' needs. * Automatic infrared induction, will automatically broadcast voice in the induction area with 3-4m induction . * Support recording function, allowing you to record what you need at will with a recording time of up to 20s. * MP3 format delivers beautiful and clear sound. Three-level can be switched freely for wider coverage. * Come with a sticker, simple to install, no need to drill. Stick it directly on the wall or door, fast and convenient. * Two power supply ways optional. It can be powered by 3 * AAA batteries* 3×AAA dry batteries are not included. You can buy them separately, or power the device directly via USB cable. Please DO NOT use USB charging as power supply after installing the dry batteries. * Please read the user manual carefully before using this product. * There may be 1-3mm errors due to manual measurement. Specifications: Material: +Electronic Components Color: White Audio Format: MP3 Code Rate: 8-320kbps Infrared Induction : ≤4m (120°perspective) Battery: 3 * AAA batteries