Tuba...

Cylinder shape speaker with build-in battery, easy cable storage, 2W speaker output and adjustable sound angle with a frequency range of 20Hz ~ 200KHz. Simply connect to your mobile phone, MP3/MP4 player, etc. using the 3.5mm audio cable. Device works up to 2.5 hours on full capacity (3.5 hrs charging time).

Model:15P270CM5052

Cylinder shape speaker with build-in battery, easy cable storage, 2W speaker output and adjustable sound angle with a frequency range of 20Hz ~ 200KHz. Simply connect to your mobile phone, MP3/MP4 player, etc. using the 3.5mm audio cable. Device works up to 2.5 hours on full capacity (3.5 hrs charging time).