Model NO.: YLBS-502 Mini bluetooth speakerSpecification   Technical Parameter:1.Dimension:59*59*51mm2.weight:213g3.Version:2.14.Frequency:2.402-2.480GHz5.Max Power Output:3W6.MIC Sensitivity MID:-32db7.Receiving Sensitivity:Better than -82dBm8.Distance:10M9.Data Transmission:Up to 3Mbps(over the air)10.UART Data Transmission:115200bps11.Charging Voltage:3.7V–4.2V DC12.Working Voltage:4.8V –5.5V DC13.Current working:200mA14.Quiescent Current:>1UA15.Battery Capacity:450mAh16.Charging time:about 2 hours17.Play time:3-4 hours18.Material:ABSColor:optionalMultifunctional Mini Bluetooth Speaker !With fashionable and elegant appearance, X3 wireless Bluetooth speaker  can almost meet your all the need of a speaker, supporting Bluetooth/line in connection, FM radio, TF card, hands-free calling, that is, it can be used for home theater, portable audio player, mobile phone, karaoke player, computer, stage, etc. Payment: L/C, T/T,Western Union, Paypal, etcDelivery: sample order 3-7 days, bulk order needs 20-30 days.