Features 1、*No lock hole design, it completely abandons the traditional key and lock, open and close by remote control or phone APP, realized real security. 2、*Tiger lock method, more safe and stable. No keyholes outside, there is no way for thieves. 3、*Add USB external power source function. Make sure the lock works when battery was dead. (battery not included) 4、*Three unlock modes optional: Phone APP unlock, Remote control unlock, Indoor emergency button unlock. 5、*Easy installation on all kind of doors, very convenient. 6、No lock hole design, it completely abandons the traditional key and lock, open and close by remote control or phone APP, realized real security. 7、Tiger lock method, more safe and stable. No keyholes outside, there is no way for thieves. 8、Add USB external power source function. Make sure the lock works when battery was dead. (battery not included) 9、Three unlock modes optional: Phone APP unlock, Remote control unlock, Indoor emergency button unlock. 10、Easy installation on all kind of doors, very convenient. 11、No lock hole design, This WAFU keyless lock completely abandons the traditional key and lock, open and close by remote control or phone APP, realized real security. 1 2、The smart lock add USB external power source function. Make sure the lock works when battery was dead. (battery not included) 1 3、3 unlock modes optional: Phone APP unlock, Remote control unlock, Indoor emergency button unlock. Specifications Note: With BT adapter, can achieve lock/unlock by phone APP. Note: The User Manual is common version. This product is 315MHz not 433MHz, and without touch lock/unlock function. Features: *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. Specifications: Host Machine: Power Supply: 2*AA batteries(not included) Transmission Frequency: 315MHz(±500KHZ) Operation Range: Within 15m Unlock Mode: APP unlock&Remote control unlock& indoor emergency button unlock APP Support: iOS/Android Color: Silver Item Size: 15.5*8*3.5cm Item Weight(without accessories): 529g Remote Controller: Power Supply: Lithium button battery Standard Number: 4 (included) Max Controller Number: 16 (not included) Function: Lock &unlock Item Size(Each): 6*3*1cm Item Weight(Each): 25g Package Information: Package Size: Approx. 22.2*19.8*5.8 / 8.47*7.8*2.28in Package Weight: Approx. 1060g / 2.3lb Package List: 1* Lock 1* Lock Body Holder 1* Lock Catch 1* USB Power Cable 4* Remote Keys 1* BT Adapter 1* Bag of Mounting Screws 1* User Manual(English) Package List 1* Lock 1* Lock Body Holder 1* Lock Catch 1* USB Power Cable 4* Remote Keys 1* BT Adapter 1* Bag of Mounting Screws 1* User Manual(English)