isekurity Warranty: 12 months refund or replacement.Lifetime technical support. Main Features: HD 1080P video, 90° wide angle lens Live view / Snapshot / Record Remotely Camera app no monthly fee Built-in rechargeable battery, support recording while charging Loop recording of MAX 64GB Micro SD Card (not included) Motion detection push alerts. One App multiple cameras, one camera multiple users. Support iPhone/ iPad, Android smartphone Notes: Both support 2.4G & 5G wifi. Please note,this camera doesn't record sound,only video record!!! Support Micro SD card Storage up to 64GB(NOT INCLUDED). This smoke detector camera has NO REAL smoke detector function,just a camera.Please confirm before buying! The battery only can record about 4 hours after fully charge,so we strongly recommend that keep charging while in use.