Mini Wireless LED BT Speaker Portable Super Bass Stereo USB/SD Card/TF/FM Radio

FEATURE:
Brand new Hands Free with Magic play LED;
MINI and Portable Bluetooth Speakers
Model: A9 bluetooth wireless speaker
Compatible with: MP3,TF/Micro SD Card
Supports: Bluetooth,Hands-free Calls,
Loudspeaker,TF Card Music Playing
Functions:Songs Track
Interface: Microphone,Mini USB,TF Card Slot
Bluetooth:Bluetooth V2.1
Speaker Impedance: 4 ohm
Transmission Distance: W/O obstacles 10m
Power Output: 3W
Freq: 90Hz-20KHz
Battery Capacity: 400mAh
Charging Time:about 2 hours
Working Time:Medium volume 2-3 hours
Battery Type: Lithium-ion battery
Operating Voltage:DC3.7V-4.2V
Power:4Ω 3W