JOYO JA - 03 Metal Sound Effect Guitar Amplifier!
Maybe you want to work out a riff with your MP3 player without taking the time to set up your amplifier. Simply plug this JOYO JA - 03 Metal Sound Effect palm-sized headphone guitar amplifier directly into your guitar, and enjoy amplified guitar sound anywhere, anytime. 
Features:
Amplifier with metal sound effect.
Aux in jack lets you play along with your MP3 player.
No matter you are in the college dorms or travelling, you can enjoy your music at any time without disturbing other people.
Specifications:
Sound effect: Metal sound effect
MP3 input jack: 3.5mm port
Earphone jack: 3.5mm port
Powered by: 2 x AAA batteries (not included)
0.077
Package weight: 0.137 kg
Product size (L x W x H): 8.90 x 7.70 x 2.60 cm / 3.5 x 3.03 x 1.02 inches
Package size (L x W x H): 15.70 x 11.80 x 4.00 cm / 6.18 x 4.65 x 1.57 inches
Package Contents: 1 x JOYO JA - 03 Metal Amplifier