EWA A150 Portable Mini Bluetooth Speaker Wireless Hifi Stereo Strong Bass Music Boom Box Metal Subwoofer, Support Micro SD Card & 3.5mm AUX Features: 1. Portable, mini size (7 x 7 x 6.4cm) 2. Metal grille, used for waterproof, dustproof and shockproof 3. 5W speaker and bass diaphragm, enjoy heavy bass playing music 4. Cylindrical and metal speakers provide 360-degree high-fidelity sound 5. Call function, eliminate noise microphone, so you can answer the phone without holding the phone 6. Support 32GB TF card or Micro SD card 7. Support AUX, can connect any audio equipment with 3.5mm interface, such as mobile phone, MP3, MP4, laptop, PC, etc. 8. Simple button control, you can press the button to turn onoff, playpause, switch modes, skip songs, adjust volume, etc. 9. Bluetooth 4.0, compatible with all Bluetooth devices 10. 650mAh battery can play for 10 hours at two-thirds volume when fully charged 11. It is not only a Bluetooth speaker, but also a mini subwoofer, wired speaker and subwoofer Product specification: 1. Bluetooth version: 4.0 2. Bluetooth distance: less than 33 feet 3. Support: Bluetooth, TF card, 3.5mm audio input 4. Expanded memory: 32GB (not included) 5. Battery capacity: 650mAh 6. Charging time: 2-3 hours 7. Listeningspeaking time: 10-12 hours 8. Waterproof level: IPX6 9. Charging parameter: 5V 10. Frequency response: 70Hz-20KHz 11. Signal to noise ratio: greater than or equal to 90dB 12. Material: Metal 13. Product size: 7 x 7 x 6.4 cm 14. Net weight: 445g 15. Support music formats: MP3, wav, wma, Flac, APE Packing list: Bluetooth speaker x 1 USB cable x 1 User Manual x 1