ELECOM MOBI-LOCK with anti-theft alarm function, easy to install and uses LR44 batteries. Vibration-sensing alarm to prevent pickpocketing. Ideal for preventing pickpocketing. Can be used as an alarm against intruders by hanging it on a doorknob, etc. Alarm type that alerts with sound. 95dB loud volume. Equipped with a self-defense alarm switch. Keyless entry with a PIN code. - Brand: ELECOM - Model Name: MOBI-LOCK - Color: Black - Features: Anti-theft alarm - Battery Type: LR44 - Installation Method: Easy installation Thank you for viewing.