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

This product is designed to transmit audio signal of TV， DVD， MP3 etc. to Bluetooth receivers， earphones or speakers by the Bluetooth wireless technology. With it， you can upgrade your ordinary audio devices which does not has Bluetooth function to Bluetooth audio devices. Without connection lines limitation， you can enjoy music without bother of messy cables. It would help you to realize a higher quality wireless household life.Features:Upgrade ordinary audio devices to Bluetooth audio devices.Supports multi-device， one transmitter could connect with 2 Bluetooth devices at the same time.High quality stereo transmission makes sure you can enjoy the auditory feast.Simple operation， no need to set up， plug and play.Exquisite round shape， mini body， more smaller and lighter.Specifications:Bluetooth version: 4.0Transmission distance: > 10mBattery duration: 5 hoursCharge time: 1.5 hoursMaterial: ABSColor: BlackItem size: 4.6 * 1.0cm / 1.8 * 0.4in (D * H)Item weight: 15.0g / 0.5ozPackage size: 7.5 * 7.5 * 6.0cm / 3.0 * 3.0 * 2.4in (L * W * H)Package weight: 73.0g/ 2.6ozPackage List:1 * Bluetooth transmitter1 * USB cable (USB to micro USB)1 * Audio cable (3.5mm)1 * User manual (English)