Crystal Mini Portable Wireless Bluetooth Speaker With Remote Control For PC Phone Specifications:   - Color: Black - Bluetooth: 4.0 - Transmission Distance: Up to 10 Meters - Speaker Power: 3W x 2 - Frequency Range: 50Hz to 18KHz - SNR: !#!amp!*!ge;90dB - Sensitivity: 500mV - Impedance: 4HM Ohm - Bare metal weight: 521.2g - Size: About 11cm(diameter)    Features:       - Bluetooth 4.0 wireless player、 long transmission distance up to 10 meters   - Bluetooth speaker with a built-in light show. Not only a speaker but also a beautiful ambiance light   - Remote Control、 change the song and light show with the remote controller easily、 support calls handsfree function   - Compatible A2DP  AVRCP high-quality stereo audio transmission and remote control protocol   - SMALL AND PORTABLE - Best decoration for home party or your bedroom. Easy to carry、 enjoy the music and light show anywhere   - Suitable for most smartphones and tablet PC    How charge:  When the speaker was in low power、 connect it to 5v power supply or  PC.  When the speaker was in charging、 the red light will show up on the back.  The red light will automatically turn off、 when it has full power.       Package Included:           1 x Crystal ball Bluetooth speaker (black)     1 x Remote control     1 x USB cable with 3.5 AUX plug