Like Snark's other clip-ons, this tuner comes equipped with powerful hyper-tuning software for fast and accurate tuning. Equipped with a bright and easy-to-read LED display, tuning with the Snark rechargeable is painless no matter where you're performing. And, with new vulcanized rubber joints, this Snark has an improved grip for snug clip-ons night after night. The real showstopper of the Snark rechargeable, though, is the all-new USB charging port. A single charge will keep your Snark running for weeks - and as soon as you notice its performance waning, plug it in via the Micro-B to USB port for quick charging.Comes with USB charging cord!