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Item specifics
  • Interface: 3.5mm
  • Sound Track: Single
  • Support Apt-x: No
  • WIFI Standard: None
  • Model Number: BT4821
  • Feature: None
  • Support AAC: No
  • Brand Name: Desxz
  • Bluetooth Standard: Bluetooth v2.1
  • Content: Audio
  • Package: No
  • Wireless Type: Bluetooth
Product Description

Wireless Bluetooth 2-in-1 Music Receiver and Transmitter Adapter Stereo Dongle Adapter for TV iPod Mp3 Mp4

Wireless Specification      
Bluetooth version :2.1+ EDR
Bluetooth frequency range    2.402-2.480GHz  
Effective range     Up to 10 meters ( 30 feets )
Bluetooth profile support   A2DP,SBC, MP3 and AAC,CLASS 2
Multipoint HFP    connection to 2 phones
Current ConsumptionOperational - Less than 18 mA (active)
Dimensions 50*24*8.5mm
Inner Li-battery 100mA
Package Contents
Bluetooth Adapter
USB  Cable
User Manual
Methods used
1.Turn on the Transmitter/Receiver Mode as you need,then long press the Multi-functional button,it will power on with blue light, and if you long press again it will power off with red light.
2.Receiver Mode:long press about 4s to power it on,it will be in the searching state and Red and Blue lights flash alternately;Search the device"Link-BT4821"and connect to it.You can play music wireless when it is paired,press the  Multi-functional Button to pause and press it again to play.
Notice:You should power it off when you want to swtich the function.
3.Transmitter Mode:Long press to power it on,it will be in searching state with Blue light flashing quickly.You can connect it with your TV,mp3,mp4,DVD players by using the 3.5mm audio cable.Turn on the Bluetooth receiver,and you will hear the Audio in the Bluetooth receiver after they have been paired.
Notice:You should power it off when you want to openthe function.
4.Connect Two Receiver:Transmitter Mode,turn off the first paired Bluetooth device and restart the adapter to pair the second Bluetooth device,then turn on the first paired device,connect with it.In this way,it can connect two receivers  at the same time.
5.It will be re-connected to the device that paired before when power on.When the device is out of the working range, it will disconnect, once the device back into the valid range, it will connect back  automatically .
6.When the device is in low power state, it will alarm;it will power off  automatically if the voltage is  below 3.0V.
7.Charging:connect with USB charging cable,the red indicator will light constantly;it will go out when finished.




Packaging Details
  • Unit Type: piece
  • Package Weight: 0.12kg (0.26lb.)
  • Package Size: 15cm x 5cm x 5cm (5.91in x 1.97in x 1.97in)
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Packaging Details
  • Unit Type: piece
  • Package Weight: 0.12kg (0.26lb.)
  • Package Size: 15cm x 5cm x 5cm (5.91in x 1.97in x 1.97in)
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