This Sense ESS One is a badass accessory it s smaller than the Pro version, less wiring and it s all in one. The sound quality is loud and clear. Remember if theres any distortion in my vids is because I had to dismantle the module and separate the amplifier and the speaker to Ghetto fit it into this bike. Off to the track Apex Hobbies next. . Senseinnovations is here. .