Binocular Technaxx TX-257 Black 4x Magnification CMOS Sensor

The Technaxx TX-257 Black 4x Magnification CMOS Sensor binocular combines optical viewing with digital capture in a compact, portable body. With 4x magnification and a 2.5 cm objective diameter, the unit provides closer views of subjects while the integrated CMOS sensor enables photo and video recording. Captured images are saved in JPG format and video files in AVI format to a MicroSD card (supported up to 32 GB). The binocular's dimensions—124 mm width, 140 mm depth and 60 mm height—make it suitable for outdoor activities where space and weight are limited.

Advantages

The device integrates optical magnification with a digital imaging sensor, allowing both real-time observation and storage of visual content. Its support for MicroSD cards up to 32 GB provides local storage without needing a separate recording device. Common image and video formats (JPG for photos and AVI for videos) ensure compatibility with standard image viewers and video players. The compact dimensions and lightweight form factor make the binocular easy to carry and handle during trips, hikes, or casual outdoor use.

Suitable for

• Casual birdwatching and wildlife observation
• Outdoor sports and events where brief recording is desired
• Travel and sightseeing when a compact visual recorder is needed
• Educational field trips and observational tasks

Key specifications

• Optical magnification: 4x
• Objective diameter: 2.5 cm
• Image sensor type: CMOS
• Photo format: JPG
• Video format: AVI
• External memory: MicroSD support up to 32 GB
• Dimensions (W×D×H): 124 × 140 × 60 mm

How to use

Install a compatible MicroSD card (up to 32 GB) into the card slot before turning on the device. Power the binocular on and use the optical view to locate and focus on the subject; adjust the position until the image is clear through the eyepieces. Use the device controls to switch between viewing, photo capture and video recording modes as needed. Captured photos are stored in JPG format and recorded videos in AVI format on the inserted MicroSD card. After use, power off the unit and remove the memory card if required for transferring files to a computer or other device.

Usage recommendations

For best results, use a MicroSD card from a reputable brand rated for standard-speed file writing; avoid cards exceeding 32 GB as they are not supported. Keep the lens surfaces clean and protect the binocular from prolonged exposure to moisture and dust to maintain image quality and device longevity.