Feature: 1. Smart Device Requirements: support by both Android(Android 9.0 and above) and iOS(iOS 11 and above) system. 2. APP Control: create an account on your smart phone, then you can control the Fingerbot via BT. 3. Voice Control: supports voice assistants such as Home and Alexa. You can set up voice commands in the APP to active voice-control function. 4. Timer Function: you can set timer in the APP. When the time is up, it will be actived automatically. 5. Replaceable Arm: with the modular design, the Fingerbot\u0027s arm is replaceable in order to meet different needs in diverse situations. Specification: Specifications: Material: ABS Communication Protocol: BLE 4.2 System Support: for iOS 11 and above, for Android 9.0 and above Stall Torsion: 2.0 kgf.cm Maximum Arm Movement: 12mm Working Temperature: -10~45℃ Battery: 3V 150mAh CR2 lithium battery Item Weight: 39g / 1.40oz Device Installation: To install your Fingerbot: 1. Clean the surface of the button panel where you want to install the Fingerbot. 2. Attach it to the panel using a double-sided tape provided in the Fingerbot package. 3. Connect your Fingerbot with the App and calibrate the movement of the Fingerbot's robotic arm to fit the button. The "Down Movement" parameter should be set to the value at which the Fingerbot's arm can just press the button. Note: Improper movement settings may bring additional resistance and reduce the life of your Fingerbot. 4. After installation, we recommend resting the device for 24 hours to reach maximum adhesion.. Package List: 1 x Fingerbot2 x Double Sided Tape