ModelBT8105Image/SizeFeatures1.High quality echo/noise eliminating technology2.Play music from your Bluetooth device 3.Redials the last number called 4.Built in speaker5.Volume adjustment6.technology:CVC technologyParameterModelBT8105Image/SizeFeatures1.High quality echo/noise eliminating technology2.Play music from your Bluetooth device 3.Redials the last number called 4.Built in speaker5.Volume adjustment6.technology:CVC technologyParameter1.Bluetooth Version:V2.02.Voltage supplied by the car charger:DC 9~26V3.Speaker output:2.5W4. Range of the hands-freeMic:0.5~2M5.Receiving range of the Bluetooth :10 M6.Echo cancellationPackageColor box : 19.6*10.6*4.6cmCTN:48.5*33.3*41.ModelBT8105Image/SizeFeatures1.High quality echo/noise eliminating technology2.Play music from your Bluetooth device 3.Redials the last number called 4.Built in speaker5.Volume adjustment6.technology:CVC technologyParameterModelBT8105Image/SizeFeatures1.High quality echo/noise eliminating technology2.Play music from your Bluetooth device 3.Redials the last number called 4.Built in speaker5.Volume adjustment6.technology:CVC technologyParameter1.Bluetooth Version:V2.02.Voltage supplied by the car charger:DC 9~26V3.Speaker output:2.5W4. Range of the hands-freeMic:0.5~2M5.Receiving range of the Bluetooth :10 M6.Echo cancellationPackageColor box : 19.6*10.6*4.6cmCTN:48.5*33.3*41.2cm40pcs/CTN1.Bluetooth Version:V2.02.Voltage supplied by the car charger:DC 9~26V3.Speaker output:2.5W4.Range of the hands-freeMic:0.5~2M5.Receiving range of the Bluetooth :10 M6.Echo cancellationPackageColor box : 19.6*10.6*4.6cmCTN:48.5*33.3*41.2cm40pcs/CTN2cm40pcs/CTN1.Bluetooth Version:V2.02.Voltage supplied by the car charger:DC 9~26V3.Speaker output:2.5W4.Range of the hands-freeMic:0.5~2M5.Receiving range of the Bluetooth :10 M6.Echo cancellationPackageColor box :  19.6*10.6*4.6cmCTN:48.5*33.3*41.2cm40pcs/CTN  Website:http://www.giftssuppliers.com