ZEALOT S30 Portable Heavy Bass Stereo Wireless Bluetooth Speaker with Built-in Mic, Support Hands-Free Call & TF Card & AUX(Black)

1. Portable leather hand strap, easy to carry 2. Subwoofer dual speakers, stereo surround 3. Support TF card, can be used without Bluetooth 4. Built-in sensitive microphone intelligent noise reduction, clear call 5. AUX audio input, easy wired connection 6.1800mAh large-capacity battery lasts for a long time, standby time up to 30 days specification: 1. Bluetooth version: V5.0 2. Speaker: 4 ohm 5W x2 3. Transmission distance: about 10m 4. Frequency response: 20Hz-20KHz 5. Signal to noise ratio: 90dB 6. Working voltage: 3.7V 7. Charging voltage: DC5V 8. Charging port: Micro USB 9. Battery capacity: 1800mAh 10. Talk time: about 3h 11. Music playback: about 3.5h 12. Standby time: about 30 days 13. Charging time: about 2.5h (different charger specifications time are different) 14. Size: 198x80x90mm