I am a new seller in this store, so don't worry that there are only one review:) 
These scanning modules have been tested for performance. All of them correspond to the characteristics specified by the manufacturer.

     The N3680 barcode scanner module is a fully decoded 2D scanner that Honeywell uses in our most compact design. The N3680 2D scanner is a balance between size, performance and ease of integration that provides an enhanced user experience. The N3680 2D scanner supports a wide range of symbols, including 1D, 2D and PDF417 barcodes. It also has advanced features that support reading poorly printed barcodes and can read barcodes directly from smartphone screens. These features make the N3680 2D scanner useful for reading mobile coupons and loyalty cards, mobile ticketing, paperless boarding passes and barcode payment systems for mobile wallet applications.

 

Dimensions:

14.6 mm (H) x 21.1 mm (W) x 11.5 mm (D)

 

Interface:

12-pin ZIF connector

 

Decoding options:

One-dimensional and two-dimensional barcodes

 

Weight:

3.6 grams

 

Scanning technology:

Matrix photo scanner