PC speaker
Specification:

Output power: 2.5w x 2
S/N: ≥ 80dB
Impedance: 5Ω
Frequency Response: 30Hz~20KHz
Material: ABS Plastic
Work with any audio player with a 3.5mm jack
Driver unit: 40mm speaker
Power supply: USB power cord

Packing details:
Packing Content: Speaker, USB Power Cord, Audio Cable
Packing: Each in a color box, 50PCS in a carton