LONGLIFE 20 is a compact, long-lasting GSM listening device engineered for reliable remote audio monitoring. With a standby time of up to 20 days, it is ideal for locations without continuous power access. This model prioritizes simplicity, audio clarity, and operational endurance for discreet and secure surveillance.

Key Features:

• Clear Sound Capture Provides high-quality audio monitoring with stable performance in indoor environments.
• Long Standby Time Operates up to 20 days in standby mode thanks to a built-in 1200mAh battery.
• Call-Back Function Automatically calls your phone when voice is detected; configurable for discreet monitoring.
• Adjustable Sensitivity Fine-tune voice detection according to your environment and security needs.
• Extended Listening Supports up to 10 hours of continuous call time for real-time audio monitoring.
• Location Tracking Get the approximate location using BTS station triangulation by sending an SMS command.
• Audio Recording Function Save 10-minute recordings on an inserted microSD card manually or upon sound detection.
• Low Power Consumption Optimized energy use: 2–3 mA in standby, 20–30 mA during detection, and 100–150 mA in call mode.

Functions:

• Extremely clear sound
• 20 days of stand-by
• 10 hours of continuous listening
• Call-back function
• Phone number filter
• Location tracking via BTS triangulation
• Audio recording to microSD upon sound detection

Ideal for: Long-term audio monitoring of remote or unsecured locations without a permanent power supply. Suitable for authorized use in properties, vehicles, and other private assets where covert surveillance is legally permitted.

The LONGLIFE 20 is designed for personal property protection and authorized surveillance. Please ensure that all use complies with applicable local laws and regulations regarding audio monitoring.

The package contains:

• LONGLIFE 20
• Charging adaptor
• Charging cable