Material: space aluminum alloy Interface: RCA Single Battery Capacity: 2400mAh Charging time: about 2 hours One battery operation time: More than 8 - 10 hours Power Supply: 1-12 Volts; Net weight: 86g； 56-168 Hertz The ambition vibe machine displays your machine speed in both Hertz & Volts. When you adjust the volt, the hertz will be changed too. Hertz allows you to know the current speed of your machine more precisely. LCD display content: output voltage range + working time + battery usage+Hertz Instructions for use: - Power ON/OFF: Press the "Ambition" key for 3 seconds - Output pause / resume: Press "Ambition" key to pause the output, and press it again to resume the output(the resume voltage is the working voltage before the pause). - Adjust output voltage:3 voltage modes: fixed voltage（4 memory modes corresponding to5V/7V/9V/11V Touch the middle of thedisplay to switch modes）, increase/decrease by 0.1V（Slide the display left and right to adjustthe voltage by 0.1v), and increase/decrease by 1（Touch the red arrow icons on the displayto adjust the voltage by 1V). The touch button will be more sensitive than the ordinary button, automatically lock the screen 3 minutes after power-on, swipe up to deactivate the lock mode.