Established in 2014, Long Tien Hai Technology Development Co., Ltd. is a leading unit in the field of import, production and distribution of smart door locks, motorcycle anti-theft locks, GPS navigation devices with the brand OSUNO. The products lead the trend with modern and convenient features such as opening by face-ID, fingerprint, code, magnetic card, remote control, integration through the App on smartphones. Reputation - Quality - Security are outstanding values ββthat bring the OSUNO brand to the forefront. Smart lock control application