Output Power: 3W

Speaker Unit: 43mm dual voice coil speaker + low frequency amplifier

Storage Type: Supports TF card up to 16GB (max.)

Battery Capacity: 500mA lithium battery (built-in)

Supported Formats: MP3

USB Size: USB2.0, compatible w/ USB1.1

Wireless Connection: Bluetooth 3.0 + EDR

Smart Connect: Smart Bluetooth connectivity

Radio function: Yes

Bluetooth Distance: 10m

Rated Impedance: 4ohm

Frequency response: 280Hz~16KHz

Signal to noise: 95dB

Distortion: 0.5%

Battery Charging Voltage: 5V

Battery Charger Time: 2 hour

Product features:

1. Support answer calling and TF Card 2. With TF card slot, can play MP3 format files in the TF card 3. Support Mobile Phone/Laptop/Tablet PC 4. Expanded Bass system drives a fuller richer low-end response 5. Larger 45mm driver delivers precise highs for superb sound 6. Built in rechargeable battery, charged by computer via USB interface.