SODO MH1 Twist-Out Wireless Stereo Bluetooth Speaker

Features: two-way sounds : headphone and speaker modes. headphone mode -once you want to escape the world temporarily and enjoy the music just alone ,please twist the earcups inwards speaker mode-earcups are twisted to outwards direction, the speaker mode is activated . it blends people with people ,and music it's better to share your joy with others rather than to keep it yourself ! specification: output power: rms 3w*2 speaker:4ω,3w,φ40mm battery capacity:350ma bluetooth version:4.2 maximum consumption current: headphone mode 100ma, speaker mode 250ma input power:dc5v 500ma frequency response:90-18khz sensitivity:500mv±50mv signal to noise ratio:>70db the distortion degree:<0.3% playing time: headphone mode around 7 hours, speaker mode 3.5 hours charging time:about 2h functions:bluetooth/nfc/fm radio/sd card/audio in