Technical Information Frequency Response: 80Hz-12kHz
Max. Output Power: 12W
Speaker Impedance: 4Ω
Operating Voltage: 3.7V
TF Card: max 64G
Built-in Bluetooth: A2DP function
Media Format: MP3, WAV, WMA
Battery 3.7V/2000mAh lithium-ion battery
Charger: DC=5V/900mA
Recharging Time: 4 hours
Operating Time: 10 hours
Physical Unit Weight: 247g
Product Dimension: 94 x 101 x 45mm
This is a Bluetooth voice amplifier that comes with a frequency response of 80Hz-12kHz. It includes an Integrated digital electro-acoustic technology that picks up 12W power, so it provides excellent sound quality with loud output volume. It offers a 2000mAh lithium-ion battery that ensures 10 hours of working time and 4 hours of recharge time. Also, it supports a 64 GB maximum TF card so it can store a large amount of data