WST-645 from Cherub is an auto clip tuner, which can be attached to a headstock and rotated for viewing whilst tuning. A colour LCD display is activated by tilting the head up, whilst tilting it down powers down the tuner, saving battery charge when not in use. The display shows note detection, tuning accuracy, mode, A4 pitch, flats and status of the internal LiPo battery, which is rechargeable via USB. Modes can be switched via a top-mounted button between Chromatic, Guitar, Bass and Ukulele, with both standard and compensated modes for guitar. Holding this button also steps through flattened tuning options. A small yet versatile tuner with pro features and easy operation.Battery[tab]Internal rechargeable LiPo battery[br]Tuning modes[tab]Chromatic, Standard Guitar, Compensated Guitar, Bass, Ukulele[br]Recharge time[tab]2 hours (approx)[br]Battery life[tab]Up to 10 Hours[br]A4 frequency[tab]440Hz[br]Tuning range[tab]A0 (27.50Hz) - C8 (4186Hz)[br]Dimensions[tab]51 x 34 x 31mm[br]Weight[tab]25g[br]Tuning stability[tab]±1 cent