Model NO.: YLBS-501 Bluetooth speakerSpecification   Technical Parameter:1.Dimension:74*74*47mm2.weight:164g3.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, 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:: T/T, L/C, Western Union, Paypal, etcDelivery Detail: sample order 3-5days,bulk order need 20-30 days.