Digital mini speaker, Built-in FM tuner, auto scanning, save up to 30 ... MP3, MP4, Notebook and other personal electronic products as source component It can read SDHC, SD, MMC and USB flash drive ... 107 x 60mm (approx.) Weight: 333gSpecifications: Output: 3W x 2 Speaker: Φ50 & Φ40 SNR: >85dB mini guitar ...