[Exquisite Appearance] Please note: This remote control is only compatible with for electric blinds. This 15-channel transmitter features a simple appearance, easy operation, a compact size, and powerful functionality. [Control Type] Two control modes are available: group control and individual control. Single control for a single curtain; Simultaneous control for all curtains; Simultaneous control for multiple curtains (requires connection to the Tuya app); Controls up to 15 curtains. [Main Parameters] Radio Frequency: 433MHz, Control Range: 20m, Operating Temperature: 32°F to 104°F; Dimensions: 150x40x9mm. Due to manual measurement, there may be discrepancies of 1-3cm, which not affect performance. [Setup] The highest upper and lowest lower positions are factory preset. However, you can change them as needed. The product does not come with batteries, and requires 2x AAA batteries Color: As Shown Material: ABS Package Contents: 1 x blinds remote control 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.