Jamstik+ Portable Smart Guitar Brand: Zivix LLC. A compact device, approximately 40cm in length and weighing about 700g, allowing you to practice guitar anytime, anywhere. It connects wirelessly via Bluetooth to iPad, iPhone, Mac, or PC, and functions as a guitar-shaped MIDI controller, enabling guitar practice and performance by triggering the sound source of the connected device using real guitar strings and frets. 《Included Items》 jamstik+ Controller, Black Box Manual Strap Battery USB cable (Not original, but I'll include a nearly new 2m microUSB to USB-C cable) A smart guitar (guitar-shaped MIDI controller) that can connect to iOS devices via Bluetooth. It can also be connected to a PC via USB. Operation has been confirmed with the Jamstik Portal app on iPad. ※ The battery is exactly the same as the Samsung S2 smartphone battery, so if you need a spare, you can easily obtain a new one.