Features: [Voice Control of the Finger robot] The finger robot can be controlled through a voice device . [Timed start] You can set the time in the APP and start the finger robot at a regular time. [Ultra-long battery life] The finger robot uses the CR2 battery(Include), which has ultra-long battery life. [Convenient installation] Stick glue on the bottom of the finger robot, paste it in the required position, open the mobile phone APP for configuration and use. Specifications: Product Name: Fingerbot Plus Battery: CR2 3.0V(Include) Working Temperature: -10-45 Torque: 2.0 kgf.cm Maximum arm movement: 12mm Wireless Protocol: Zigbee note: Different batches may cause differences in product appearance, printed text, and color, which will not affect the use Material: plastic colour: white Package Contents: 1 x Fingerbot Plus Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.