Enjoy music on the go or anywhere for that matter with the Robot Spirit H10 wireless Bluetooth headset, the design is stylish, portable, given its foldable design and it has an amazing bass sound. It also has a in-build microphone, so you can easily receive phone calls. Features - Equipped with an Independent DSP Chip to produce a better bass sound - Using a 40 mm drive unit, it restores every sound detail - Select the EQ setting you like (Deep Bass Mode or Normal Mode) - Foldable, lightweight at just 138 g and easy to carry anywhere - Adjustable ear cup design - Earmuff adaptive design - Adjustable stainless steel headband - Up to 15 hours of battery life on 2 hours of charging - Wired and wireless can be replaced as needed - Frequency Response : 20Hz-20KHz - Driver Impedance : 32?±15% - Driver Size : 40mm - Rated Input Power : 10mW - Output S.P.L : 103dB±3dB - Mic. Sensivitys : -42±3dB - Bluetooth Rang : >15m (50 ft) - Battery : 300mAh - Connection : Bluetooth & 3.5 Jack AUX