1.Small size, easy to carry; the length * width * height of the SG7 smart guitar is 53cm*8cm*5cm , and weighs 750g ; so it can be easily put into a handbag and a 20- inch suitcase! 2.It is both a silent guitar and a performance guitar; this smart guitar has a 3.5mm stereo headphone jack and a 4Ω 5W high-fidelity speaker; plug in headphones to enter silent mode and enjoy your own music space; take off the headphones to enter loudspeaker mode, I play and you sing, and we can have fun together! It also has a turntable independent volume knob to adjust the volume at will. 3.The acoustic guitar and electric guitar tones can be switched at will, and one guitar allows you to easily perform folk and rock classics; the sound source comes from the original sound collected from two high-end guitars , with high-fidelity CD sound quality, 44.1KHz high sampling frequency and 32 -bit sampling accuracy. 4.The smart guitar does not require tuning; all the sound sources of this smart guitar have been carefully adjusted. When the player adjusts the tightness of the guitar strings according to personal habits, it will not affect the pitch of the guitar, so you do not need to buy a tuner separately, and you do not need to spend a lot of time tuning before each playing. 5.It is a smart guitar that does not hurt your fingers; this smart guitar uses customized guitar steel strings, and the tail of the guitar strings uses patented technology of adjustable spring cable studs. Users can adjust the tightness of the guitar strings according to their own feel. And the tuning-free function of this smart guitar realizes the adjustment of the tightness of the guitar strings without affecting the pitch. Therefore, this smart guitar is a gentle guitar that does not hurt your fingers! 6.Small in size, but powerful in intelligence, this smart guitar uses nearly 100 sets of sensors and up to 7 CPUs to work together. Through AI learning and bionic traditional guitar, it can realize instant detection of guitar fretboard, 128 levels of finger-playing and strumming! Let's pick it up and play a classic solo right away ! 7.Digital capo: This smart guitar comes with a powerful digital capo. The digital capo can switch freely between lowering a whole tone, lowering a half tone, clamping the first fret, clamping the second fret ... clamping the thirteenth fret. You don't need to buy a capo separately, you can easily play all the songs of the 20 -fret guitar. 8.Stereo metronome: This smart guitar comes with a powerful metronome that can set the rhythm of 1/4 , 2/4 , 3/4 , 4/4 , 6/8 and the beat speed of 10-200 . Beginners are advised to turn on the metronome when practicing guitar to make their rhythm more accurate! 9.Function 1 of the smart self-learning guitar: micro-motion mirroring function; this smart guitar is equipped with a high-resolution LCD, which automatically enters the micro-motion mirroring function after powering on, and displays the guitar's fingerboard model and 6- string playing status in real time. The position of your left hand pressing the strings and the playing status of your right hand will be clearly displayed on the LCD screen, and errors such as virtual pressing and mispressing of the left fingering, as well as the accuracy of the right hand playing and strumming will be clearly displayed! 10.Function 2 of the smart self-learning guitar: AI grid practice; this smart guitar has built-in various ways of grid practice, which can pre-prompt the playing quality through LCD and metronome, and intelligently judge the right and wrong playing in real time. After each practice, the system AI will give star ratings and encouraging comments in terms of accuracy, rhythm and speed; grid practice can not only set various practice methods such as ascending, descending and staggered, but also set any speed from 10bpm to 200bpm . Practice is not boring and progress is visible! 11.Function 3 of the smart self-learning guitar: AI scale practice; this smart guitar has five built-in fingering scale practices: Mi scale, Sol scale, La scale, Si scale, and Re scale; it displays the scale quality chart and the correctness of playing in real time. After each practice, the system AI will give stars and comments on accuracy, rhythm, and speed; scale practice can also be set at any speed from 10bpm to 200bpm , and the metronome will beat the beat through animated pictures and sounds. Practicing scales while strengthening the sense of rhythm can make it easier and smoother for us to start playing songs! 12.Function 4 of the smart self-learning guitar: AI chord conversion practice; this smart guitar has built-in 11 categories of chord practice: major , minor , 7th , m7 , maj7 , 9th , 6th , m9 , m6 , sus4 , sus2 ; each category of chords includes 7 commonly used chords, and each chord practice adopts the method of following the chord score. The system will use AI to judge the fingering in real time. If the fingering is completely correct and undergoes a fixed-length fingering stability test, the system will switch to the next chord fingering. Every test you pass is progress, so you will be surprised to find that you can actually start playing and singing without knowing it! 13.midi guitar that can be notated ; this smart guitar has a built-in USB2.0 Micro USB interface, and the USB data cable that comes with it can be connected to the computer without a driver. It is perfectly compatible with the most commonly used Guitar Pro guitar notation software. Just play it easily and you can get the music score file you want! 14.It is also a smart guitar that can be connected to a mobile phone APP ; this smart guitar has a built-in data module and can be connected to APPs that support standard midi , such as the powerful GarageBand. After connecting to the APP , you will be able to play the sound effects of various instruments with the guitar, and you can start recording your own works! 15.Small size, big power! This smart guitar has a built-in 2000mAh lithium battery with a battery life of 8-10 hours. It can be charged with a DC 5V charger via the included micro USB cable . 16.The system supports bilingual menus in Chinese and English, and users can easily switch according to their language habits! size: 53cm*8cm*5cm weight: 730g grade: 7th​ Digital Capo: Flattened, flattened, 1st to 20th frets Timbre: 2 types of sounds: acoustic and electric Battery: 2000mAh Battery life: 8-10 hours8-12 h power input: DC 5V 1A midi output: USB2.0 (driver-free) Audio output: Stereo headphone output and built-in 4 ohm 5 W speaker output Other software features: Digital capo, metronome, climbing grid exercises, chord exercises, scale exercises, etc. System language: English