Driver Diameter: F40mm
Frequency Response: 20-20,000Hz
Impedance: 320
Sensitivity (S.P.L.): 500mV±50mV
TF Card Slot: Support Upto 32GB
Output Power: 3W*2
Speaker: 40f,4 Ω/3W
Battery Capacity: 300mAh
Input Power: DC 5V
Distortion factor: ≤0.3%
Signal to noise ratio: S/N≥70dB
Working Time: Headphone mode about 3.5 Hours, Speaker mode about 7hours.
Charging Time: 3hours
Bluetooth Version: 2.1
Functions:
Aux in Function
Phone Call Function
TF Card Slot
FM Radio
Built in Battery
Loud Speaker Function
Metal Buttons
Foldable and Flexible
Colors: Black, Red, Blue
hopestar Twist Bluetooth Speaker and Headset, Twist-Out Speakers-Feel the Bass-Share Your Music
Functions:
Aux in Function
Phone Call Function
TF Card Slot
FM Radio
Built in Battery
Loud Speaker Function
Metal Buttons
Foldable and Flexible