Micro digital voice recorder A1, the first voice recorder with an external rechargeable lithium or button battery, able to record audio files storing them on a microSD card (32GB). Designed to achieve live sound recordings in a wide frequency range controlled by an internal microprocessor.
Despite its tiny size (just a bit over one cm) and low power consumption, the micro digital recorder A1 is characterized to provide a high-quality recording and a wide range of settings and customizations. This device records high-quality sound, with a sample rate of up to 44kHz. Its recording capabilities by voice activation (VAS - Voice Activation System)and the programming software supplied, they also give you the possibility to program up to 5 timers for a specific date, and up to 3 daily timers, with activation and stopping separate registration.
You can keep secret the information stored in the MicroSD card with an encryption key, making the theme totally unknown to any other system. The working module is designed to operate on battery power or power supply, in a range between 2.9 and 4.3 volts. Its high sensitivity Knowles microphone is able to record any conversation at a distance of over 10 meters. The system integrates a powerful microprocessor managing independently microphone, audio, and battery.
With only 2x1 cm size this digital micro registratore, provided with a 3,7Volt - 100mA micro base battery*, is easily concealable in any place or object. Anyway, the battery can be customized to record in specific times or resized, according to the customer requirements.
Size: 2,1 x 1 x 0,5 cm
Power supply voltage: 2.9 - 4.3V
Card type: Micro SDHC (max 32GB)
Storage format: 10 bit uncompressed, ADPCM 4bit
Sample rate: 5KHz-44KHz
Bit width: 8-10 bit
Built-in microphone sensitivity: over 10m
Power consumption in VAS mode (stand-by): 2.0-2.7 mA
Power consumption in stand-by mode (stand-by): 1,6mA a 3,0V
Voice activated recording: yes
AGC function: yes, automatic gain control
Exporting format: by using its own software, in WAV format
Scheduled recording: day time selectable, weekly period or calendar
Microphone type: high quality knowless otophone
Audio encryption: 128 bit of the recorded files
OS compatibility: Microsoft Windows
Table of the A1 average energy consumption at different sample rates: