I purchased this item, but I am selling it because I received a similar product for free due to a mistake by the house builder. The following is a reprint of the product description: ■ Daikin Wireless LAN Connection Adapter. *Please confirm the compatible models before purchasing. *Depending on the model of your air conditioner, you may need separately sold items such as a remote control P board set in addition to this wireless LAN connection adapter. Please check the instruction manual of your air conditioner or the manufacturer's website for details. Specifications 1 External dimensions (height x width x depth): 79 x 52 x 17.5mm Weight (excluding connection cord): 40g Standby power consumption (adapter unit only): 1.2W or less Communication specifications: ・Supported standards: IEEE802.11b/g/n (2.4GHz) ・Channels: 1-13CH