B850 Wireless Bluetooth Speaker with Handsfree FM Radio Power Bank Function Suction Chuck Phone Stand Holder<br>Features: <br>Bluetooth wireless technologyHigh-speed data transmissionStrong anti-interference3000mAh Power Bank FunctionFM radioIt can be used indoors or outdoorsSpecial suction design， could sucked on any flat surface including desk， wall， tableBuilt-in microphone for hands-free calls， free your hands and keep your safety in driving<br>Specification:<br>          Model       B850           Bluetooth Version       V3.0           Frenquency       2.402-2.480GHz           Max Power Output       3W*2           Mic Sensitivity       -38db           Sensitivity       Better than -82dbm           Support the TF card       No           Range       10-30 meters           Charging Time       6 hours           Music Playing Time       16 hours           Standby Time       100 hours           Charing Voltage       4.8v-5.2v           Working Voltage       3.7v-4.2v           Working Current       150MA           Quiescent Current       &amp;gt;1UA   <br>Package Included: <br>1 x B850 Power Bank Bluetooth Speaker1 x USB Cable1 x English Manual<br>Detail Pictures: