Yamaha YT-250 Chromatic Tuner For Tuning Music Instruments. Precise tuning for any instrument across 8 octaves Built-in microphone allowing you to tune acoustical instruments Auto-mode offering fast tuning by automatically selecting the closest tone programmed in the tuner Tilt slot allowing you to insert a coin into the slot and tilt the tuner back for easy viewing In/Out jacks permitting you to insert the tuner between your instrument and the amp without dealing with connections every time Precise tuning for any instrument across 8 octaves Built-in microphone allowing you to tune acoustical instruments Uto-mode offering fast tuning by automatically selecting the closest tone programmed in the tuner. Large, high-resolution liquid crystal display that is easy to read In/Out jacks permitting you to insert the tuner between your instrument and the amp without dealing with connections every time Precise tuning for any instrument across 8 octaves. Built-in microphone allowing you to tune acoustical instruments. Battery is not included and just for demo. Will be shipped by Air Mail International priority mail. Thanks for looking I will ship Worldwide. PayPal only.