Effective power: 2x3W, Impedance: 4Ω, Frequency range: 60HZ-20kHz, Headphone output: 3.5mm stereo mini-jack, Power supply: 5V, Requires: USB and 3.5mm Mini-Jack headphone output

Effective power: 6W (2x3W), Impedance: 4 ohm, Frequency range: 20Hz-20kHz, Power supply: 5V, Requires connectors: USB and 3.5mm Mini-Jack headphone output, Cable length: 1.2m, Weight: 278 g, Dimensions: 7.0 x 7.0 x 7.5 cm

3W, Bluetooth v3.0, Built-in battery Li-ion, 400 mAh, Lithium polymer, Frequency range: 280 Hz-16 kHz, Button to answer calls, Charging voltage 5V, Bluetooth range: up to 10m, Signal selection: Bluetooth, microSD, Button to answer calls, Dimensions: 150 x 55 x 50mm, Weight: 187 g

RGB Backlit, Power supplier - USB, Output - 3W*2, Frequency response - 150Hz-20kHz, Impedance - 4 ohms, Color - Black