Audio Doorphone Handfree Open Two Locks Ringtone Selection

Audio Doorphone Handfree Open Two Locks Ringtone Selection. Dual Lock Control: Supports opening both the main door and the gate independently via indoor unit buttons. 12 Built-in Ringtones: Users can select from 12 different ringtone options to suit personal preferences. Adjustable Volume: Income volume can be adjusted across three levels: high, medium, and low. 1-Year Warranty: Comes with a comprehensive 1-year warranty coverage for peace of mind. Waterproof Design: Outdoor unit features waterproof construction suitable for various weather conditions. Flexible Customization: Offers full, minor, and sample-based customization options for OEM/ODM needs. Visual Indicator Lights: Red light for standby, twinkling blue for calling/adjustment, and off after 30s ring. Long Distance Support: Supports transmission lines up to 100 meters with appropriate cable specifications.