*No lock hole design, it completely abandons the traditional key and lock, open and close by remote control or phone APP, realized real security.
*Tiger lock method, more safe and stable. No keyholes outside, there is no way for thieves.
*Add USB external power source function. Make sure the lock works when battery was dead (battery not included).
*Three unlock modes optional: Phone APP unlock, Remote control unlock, Indoor emergency button unlock.
*Easy installation on all kind of doors, very convenient.
NOTE: With WIFI Adapter, can achieve remote control the lock by phone APP.<br/><br/>Features:<br/>*No lock hole design, it completely abandons the traditional key and lock, open and close by remote control or phone APP (Tuya / SmartLife), realized real security.<br/>*Tiger lock method, more safe and stable. No keyholes outside, there is no way for thieves.<br/>*Add USB external power source function. Make sure the lock works when battery was dead (battery not included).<br/>*Three unlock modes optional: Phone APP unlock, Remote control unlock, Indoor emergency button unlock.<br/>*Easy installation on all kind of doors, very convenient.<br/><br/>Specifications:<br/>Host Machine:<br/>Power Supply: 2*AA batteries (not included)<br/>Transmission Frequency: 315MHZ (±500KHZ)<br/>Operation Range: Within 15m<br/>Unlock Mode: APP unlock&amp;Remote control unlock&amp; indoor emergency button unlock<br/>APP Support: iOS/Android<br/>Color: Silver, Blue with Silver, Blue with Gold (Optional)<br/>Item Size:15.5*8*3.5cm<br/>Item Weight (without accessories): 529g<br/>Remote Controller:<br/>Quantity: 2PCS, 4PCS (Optional)<br/>Power Supply: Lithium button battery (included)<br/>Function: Lock &amp; unlock<br/>Item Size(Each): 6*3*1cm<br/>Item Weight(Each): 25g<br/><br/>Package List:<br/>1* Lock<br/>1* Lock Body Holder<br/>1* Lock Catch<br/>1* USB Power Cable<br/>2/4 Optional* Remote Keys<br/>1* WiFi Adapter<br/>1* Bag of Mounting Screws<br/>1* User Manual(English)