Woofer: 4" polypropylene cone
Tweeter: 0.75" silk dome
Amplifier Type: Class AB
Woofer Amplifier Power: 15 watts/channel
Tweeter Amplifier Power: 10 watts/channel
Frequency Response: 55Hz ~ 20kHz
Inputs: 1x 3.5mm AUX, 1x Stereo RCA, 1x stereo balanced 1/4" TRS, BluetoothÂ®
Output: 1x 3.5mm headphone
Bluetooth Version: 5
Bluetooth Pairing Name: DT-4BT
Input Power: 110 ~ 120 VAC, 50/60 Hz
Dimensions (each): 6.1" x 8.7" x 7.1" (154 x 222 x 180 mm)
They are 16-watts.
Yes, smartphones are compatible with the speaker's auxiliary cord.
The speakers are powered by two 8-Watt amplifiers.