i9:
1. 16 modes, 80-speed sound-changing and fine-tuning, beautify the sound and easily control the live room
2. 8 popular live broadcast modes, switch between original sound/magic sound/gramophone/radio/live broadcast/KTV/recording studio/animation
3. Bluetooth accompaniment transmission, get rid of the trouble of connection
4. Other functions: dodge / cancel the original sound / internal playback
5. Reverb Mode: DSP
6. Channels: 2
7. Built-in 500mAh lithium battery
8. Packing list: audio cable x 2+charging cable+voice changer, set: microphone+monitoring headphone+audio connecting cable x 2+charging cable+voice changer+leather storage bag

K9:
1. In the electronic music mode, 13 kinds of keynotes can be adjusted, and 13 kinds of sound effects can be used to sing a song, and the gameplay is more gentle
2. 9 kinds of warm-up sound effects, one-click use of live broadcast, easy to heat up the atmosphere of the live broadcast room
3. 5 types of professional adjustment, treble and bass adjustment/accompaniment adjustment/microphone adjustment/monitor adjustment/reverb adjustment
4. 11 featured modes
5. Ducking/Cancelling
6. Reverb Mode: DSP
7. Channel: 2
8. Built-in 1000mAh lithium battery
9. Packing list: audio cable x 2+charging cable+voice changer, set: microphone+monitoring headphone+audio connecting cable x 2+charging cable+voice changer+leather storage bag