Power supply: 5.0V DC (USB cable for PC)

Output power: 2W x 2

Frequency response: 20 to 200kHz

Impedance: 4 ohms

Unit speaker: 50mm x 2

Signal to noise ratio: >75dB

Plug: stereo 3.5mm

Feature: suitable for your iPod, MP3/MP4 player

Certification: FCC, CE/EMC, and RoHS

GES-888 Earbud Speaker