TMEZON Wireless Doorbell Camera, 2K Smart Video Doorbell Works with Alexa Door Bell Camera for Home Security, 2.4G WiFi Required

❤️Warm Reminder Support 2.4Ghz WiFi only, dual-band (2.4G and 5G) WiFi need to set a separate 2.4G channel. Please don’t forget to remove the insulation film attached to the batteries before use. Supports micro SD cards up to 128GB in FAT32 format.The SD card is not included.