Ironman S5 Mini Ultra-portable Bluetooth Speaker*Incredibly CompactTeacup-sized body makes you taking your sound literally anywhere you want.*Impressive AudioA 3W audio driver, passive subwoofer, Zealot's professional tuning technique and precision-engineered design deliver a clear, full-bodied stereo sound.*Volumes of High-defSuper high volume in such a mini speaker with crystal clear sound either in playing soft music or heavy metal ones. *Make your life more convenientBuilt-in microphone to answer/hang up/redial/reject phone calls hands-free, making your life more convenient*Bluetooth 4.0 Connectivity S5 uses the very latest Bluetooth technology to maximize device compatibility and pairing speed. *Multifunctional Supports wireless Bluetooth music, FM, TF card, and USB MP3 playback, also you can use 3.5mm audio cable to connect non-bluetooth devices ( AUX/Audio player, desktop PC, laptop, tablet, and etc.)Specifications 1. Battery capacity: 2000milliamp 2. Bluetooth Version: CSR 4.0 3. Music time: 6-12hrs 4. Standby time: 20 days 5. Transmission distance: 10m 6. Frequency response: 20Hz-20KHz 7. Speaker: 4 8. SNR: 90dB 9. Operating voltage: 3.7V 10. Distortion : 1% 11. Input voltage: 5V/ 1A Output voltage: 5V Output power: 3W Work voltage: 3.7V 12. USB/Micro SD support: 32G (Max) 13. Size: 72x 72 x 82 mm 14. Weight: 200g Standard Package (Retail gift box): Bluetooth Speaker *1pc USB charge cable *1pc User manual*1pc