Dear，Pls leave a massage to tell us what design (Color) do you want.thank you.

Feature:Constructed with aluminum alloy casing， high quality and durable.Fashion and laconic cylinder shape design， full of modern feel.Support bluetooth calls handsfree.Bluetooth Music/TF Card Music/Exterior Music Aux-in Supported.Stereo and Bass Sound EffectSupport FM Radio.Specification:1.Casing Material: Aluminum Alloy2.Frequency Response: 150Hz-20KHz3.Output Power: 3W*24.Bluetooth Standard: RDA 3.05.Frequency: 2.402-2.480GHz6.MIC Sensitivity: -38db7.Speaker Sensitivity: better than -82dBm8.Range: 10-30 meters9.Working Voltage: DC3.7-4.2V10.Working Current: 150mA11.Power: Built-in 3.7V，400mAh Li-ion Battery.12.Charging Voltage: DC4.8-5.5V， 200mA.13.Music Playing Time: more than 2.5 hours.14.Handsfree Talking Time: more than 4.5 hours.15.Standby Time: more than 20 hours16.Dimensions: 71.2(Diameter)x42.5(H)mm17.Unit Weight: 170g.