Features:
Speaker has a built in microphone so you can take calls on the speaker
Wireless, hands free, that's what you need to be with music everywhere
With micro SD TF card slot, you can play mp3/ mp4 format files in the TF card
Support A2DP, AVRCP, headset, hands free profile
Expanded BXS (Bass Expansion System) drives a fuller, richer low-end response
Built-in 500mA/3.7V rechargeable battery, charged by computer via USB interface

specifications:

Voltage: DC 5V
Output Power:3W
Speaker Unit: Phi 45MM
Distortion Rate: 0.5%@ (1KHz)
Frequency: 90Hz-20KHz
Transmission Range: Up to 10 meters (without shelter)
Battery Capacity: 500mAh
Continuous Working: 3-5 hours
Extended Storage: 32GB
Effective Distance: 10 meters
Play Format: WAV, MP3, WMA
Format: Support TF Card
Unit size: 2.83*1.89inch (72*48mm)
Weight: 172g(without package)

Package includes :
1 x Mini Bluetooth speaker
1 x Charging Cable
1 x User Manual

• Bluetooth Technology 4.1:Our Bluetooth Speakers using latest bluetooth-enabled technology that help your device connect in several seconds from up to 33 feet away.Compatible with iphone/ios/andriod/tablet.
• Multiple Connetion Ways:The Wireless Bluetooth Speaker supports bluetooth wireless connection,3.5mm AUX audio input connection, TF card reader player.
• High Quality Sound Output:3D Surrounded enhanced Bass,low harmonic distortion,this Bluetooth Speaker let you enjoy crystal clear and incredible sound.
• Rechargeable Battery:These mini size Wireless Speakers equipped with a rechargeable battery-500mAh, offer 4-5 hours of playtime.
• Hands-free calls: Built-in mic,the Speaker is convenient for busy people who need hands free while talking.

Bluetooth Technology 4.1:Our Bluetooth Speakers using latest bluetooth-enabled technology that help your device connect in several seconds from up to 33 feet away.Compatible with iphone/ios/andriod/tablet.cooligg