Speaker Mini Portable - Micro SD slot - USB slot - Powerful Speaker - Radio - Rechargable lithium battery Specifications : Color: Black/Silver/Pink/Blue/Green Power supplier: 3.7V Output: RMS 3W THD = 10% Frequency: 150Hz-18000 Hz (+/- 3dB) SNR : 80db Response Sensitivity : 90db Impedance : 4HM(Ω); Power Input : USB DC 3.7 Speaker Unit : 45mm Case Material : Aluminum on / off switch LINE IN / 5V : audio Input USB / Power Supply Package Content : 1x Speaker Mini Portable 1x External charger cable ( with USB port, AUX music port ) 1x User Manual Also Available : Speaker Bluetooth Mini Portable https://www.tokopedia.com/tokomipo/speaker-bluetooth-mini-portable Speaker Music Angel MD-06 https://www.tokopedia.com/tokomipo/speaker-music-angel-md-06 Speaker Music Angel UK-5 with LCD https://www.tokopedia.com/tokomipo/speaker-music-angel-uk-5-with-lcd