Caston Portable Bluetooth speaker strong bass plus extension 4 way with long cable and neck band

for conference calls, working, teaching, learning, cleaning, etc - Portable and compact size that you can move it around with you using the onboard stylish strap - Easy control with volume, play/pause, answer buttons all on the top of the speaker - Long playtime with the built-in 1200mah high performance li-ion battery - 6-15 hours of music at 2/3 volume, t