The idea is originate of  the world .

Earphones :6 80kJ Bass

• stereo sound
• Driverunits:13mm dia,dome type
• power handling capacity:0.1W
• impedance:16 ohms at 1 KHz
• sensitivity:  108db~111db/mW/frequency range: 20-20,000 Hz
• cord length: 1.2m
• 3.5mm plus

No Battery Amplifier :

• Size : 80x80x25mm
• Physical structure expand sound Design ( NO Battery )
• Portable Outdoor Design and Keychain Design ( For Decorate )
• Double effect TO Expand Earphone's sound

Note :

- Remember turns the loudest sound when put earphone on amplifier.

- Remember turns back the earphone sound in normal after used the amplifier.