BTFR for the MATLAS dwarfs with an HI line detection in the ATLAS^3D HI survey (blue markers) and in the ALFALFA survey (light blue markers), as compared to the sample of dwarfs galaxies in the LV (gray crosses) from Karachentsev et al. (2017). The dashed line represents the linear relation fitted by Karachentsev et al. (2017). The dotted lines correspond to the maximum scatter of ±1.26 dex for the LV sample. We represent the MATLAS dEs and dIs with circles and triangles, respectively. We use the estimated errors on the velocities for the error bars.