LB1 High Performance New Wireless Bluetooth Mini Speaker for Kindle Fire HD Dual-Speaker Music System with Built-in Microphone and Micro SD card slot (Black) High-end Stereo Bluetooth Speaker Mini Music system with Built-in Microphone and Micro SD card slot. 2 pieces of 40MM driver massive rich sound. Output capacity of 85 decibels - music fills even the largest rooms. Replaceable Rechargeable battery supports up to 6 hours playback time - can be charged via Laptop Destop PC by included micro USB charger cable Built-in microphone for hands-free phone calls. Easy connect to phones or other bluetooth devices - Can be used as wired speaker with AUX cable. Comply with Bluetooth-RF range is up to 10M. Simple pairing with your iPhone-iPad-iPod touch-Android-BlackBerry and other devices-watching movies-playing games is a real enjoyment! Audio jack work with iPhone-iPod-phone and other player and laptop. Hands-free with microphone design for mobile phone user-allow you to mute the music to answer a call directly from the headphones. 100% Customer Satisfaction. Fast Same-Day Shipping by 12:00 PM PDT. 30-Day Money Back Guarantee. 12 Months Warranty. Exclusive $100000 Product Protection Plan! Satisfies Government - School - Health care enterprise and Corporate account purchase order requirements.