Product Details:
 
It is the world's first Sound Activated LED Leather Guitar/Bass Strap that consists of an adjustable computer sound module for the variation of sequence lights.  It can be adjusted according to the sounds of large concert music. 
 
The LED lights react to all notes that are played on their instrument. Its strap consists of a USB port to recharge the built-in battery with a charging cord that includes an indicator light to notify people when the charge is complete. 
 
Its battery lasts for 4 to 5 hours on a single charge. The leather guitar strap is also adjustable. 1 Lithium ion battery required. (included)
 
Unisex Guitar Strap - Electric Guitar Strap Features:
World's First Patented Sound Activated LED Guitar Strap
RECHARGEABLE BATTERY: It has the amazing rechargeable facility. A single charge battery life is 4 to 5 hour to play more.
USB cable for recharging
Sound Activated: Responds to very light sounds to full concert sounds
USB Charger: Includes USB charger with an indicator light notifying the charge is complete