Re-voiced and fine-tuned for smoother treble response and a warmer, more natural acoustic tone Active electronics and neodymium magnet structure for exceptional string balance and sparkling acoustic clarity Miniature batteries mount conveniently on the underside of the pickup (batteries included) Low-current design of the preamp allows up to 240 hours between battery changes Newly designed mounting system and ergonomic body shape Pre-wired output jack can also be endpin-mounted Easy installation with no alteration, plug-and-play right out of the box