The 2B is famous for its , where external sound files drive the electrical output. This allows for "Sync" play where the sensations match music or specific training routines.
The 2B requires a line-level audio signal (approx. 1 Vrms max). Files must be played through a device with volume control (phone, PC, dedicated player).
) for advanced users looking to integrate their 2B with interactive platforms. How to Use Audio Files with the 2B To get the most out of these files, your 2B must be in Audio Mode
April 18, 2026 Subject: Analysis of control files for the Estim 2B electro-stimulation device