@iENYRID @akasoofficial This is the second test video with the AKASO V50 external microphone but this time fixed on the iENYRID M4 PRO S+ Electric Scooter, using the AKASO EK7000 PRO action camera in resolution 1080p - 30fps with stabilisation turned on to see which resolution is best from the three videos added (this being third). The Scooter was at full charge earlier (previous video) and including miles travelled in this video and previous while using full throttle (3rd gear) the odometer shows almost 17 miles but take into account smoother ground surfaces should get you more distance (unless inclines) so a full charge of 54v reducing to 45v has good speed in highest gear (20mph to 27mph depending on surface) and then slows until battery cuts out around 40v...hope this information helps in any potential buyers of either item tested in this video, any lower gear usage should increase distance travelled so the potential of 31 miles of one charge is possible when restricting power output. Oh yea did go through a thick muddy puddle and coated the motor with wet mud by mistake at speed @17:12 , some say puddles are ok but its best to avoid them just incase. After viewing this video it is best to either attach camera on yourself for more stability (im not too fussed) but definitely for best sound do not attach microphone on scooter or bike for vibration plays a big part in noise reduction.