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

Specifications:Bluetooth Music Receiver (hands-free) can receive is a high-tech mobile phones or wireless Bluetooth music transmitter on. This music canbe used for almost all the receiver's audio receiver can be used with input plug， including automotive devices. You can hear then received fromyour smartphone and MP3 music to speakers in the home or car stereo system. Enjoy the ultimate car music， call solutions using smart phonesto make calls and listen to music through the car stereo. Touch of a button speakerphone， enjoy the music stored on the phone and evenplay Internet radio. The product with embedded echo canceling microphone， with just one button you can easily switch between music and calls.Features:Bluetooth v4.1.Bluetooth hands-free.A2DP 1.3 and AVRCP 1.5 profile enable， HFP profile version1.6 compliant， HSP profile version 1.2 compliant ，AVRCP profile version 1.5 compliant.Pair with 2 phone at the same time and standby together.Re-connected automatically while back to car.Once disconnected over 10 minutes will be auto power off.Work time up to 14 hours.Support voice prompt when you use it.Support for iPhone to show the remaining power icon of receiver.Type: Bluetooth Music ReceiverColor: BlackInput Voltage: 5VClass: Class 2Frequency: 2.4GHzConnector: 3.5mmTransmission Rate: 24 MbpsCompatible Brand: UniversalOperation Time: Up to 8 hoursBluetooth Stereo Audio Profile: A2DPPower Supply: Chargers via Mini-USB CableFeatures: Bluetooth Wireless， Mini and Handsfree， Car Bluetooth Music ReceiverBluetooth Version: Bluetooth V4.1+EDRBluetooth Transmission Distance: Up to 10mSize: 5.4cm x 2.3cm x 1.2cm/2.13" x 0.91" x 0.47" (Approx.)Notes:Due to the light and screen setting difference， the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Bluetooth Music Receiver(with Lithium Battery)1 x USB Cable1 x User Manual1 x Audio Adapter