Recimo Smart Bluetooth Speaker, Black/Upto 5Hrs Playback Time, 45Mm*2 Speaker Driver, Supports All Phones, Card Slot, Calling Supported. About Product: Recimo Bluetooth speaker features dual drivers with 100% pure titanium diaphragms that increase treble up to 40kHz while minimizing distortion. Enhanced Bass: Dual passive radiators operate in unison with updated BassUp technology to pump up the bass in real time, even at low volumes. Recimo 3’s stereo sound enhances the immersion of your music and enhances the ambiance in both indoor and outdoor settings. The ultra-long playtime of this Bluetooth speaker makes it ideal for carrying on days out or weekends away.