[Control Functions] The AC123 series transmitters are available in 1-channel, 6-channel, and 16-channel versions, allowing for group control of multiple curtains. [Compatibility] Due to the large number of motorized curtain on the market, the remote controls are not universally compatible. Only the following models are compatible: AC123-01D, AC123-02D, AC123-06, AC123-16D, AC114-01D, AC114-02D, AC114-06D, AC114-16D. Please confirm the model of your existing remote control before placing your order. compatibility with your motorized equipment. [6-Channel Transmitter] Suitable for motorized roller blinds, motorized Venetian blinds, motorized curtains, motorized awnings, etc. [Wireless Range] Operating frequency is 433.92MHz. In unobstructed conditions, the remote control distance can reach 200 feet (approximately 60 meters). [Battery Compartment] The back cover is secured with screws, making it difficult to disassemble and effectively preventing damage from drops. Replacing the batteries requires unscrewing the screws.