This core is built to light up 2 blades with a single core and single button setup. You can use this core in place of your original core and swap out the pommel for a another emitter and have a double bladed saber. 
The New Xeno3 RGB Double Sided Core
- Can power two blades
- RGB Infinite Spectrum Colors
- Color synch activation switch
- 7” Core lenth with a 1in Outer Diameter
- Barrel Port 2.1mm 5v charging 
- Rectangle Port USB-C charging
- Oem 23mm Speaker
- 18650  3.7v  3000mah Protected Battery
- 16gb SD card (adding and editing fonts and settings)
- Now with Smoother SmoothSwing Algorithm
- Accent swing sounds
- Spin, Stab & Force Effects added
- 34 fonts + volume control
- Bluetooth connectivity (App control)
- Gesture controls functionality