❤️Type: bluetooth transmitter receiver
❤️Manufacturer model: C28
❤️Color: black
❤️Material: plastic
❤️Bluetooth version: V5.0
❤️Port: 3.5mm jack
❤️Battery capacity: 140mAh (built-in rechargeable lithium battery)
❤️Operating frequency: 2.4 (MHz)
❤️Charging time: 1 hour
❤️Charging mode: USB cable
❤️Transmission distance: 10 meters
❤️Transmission rate: 100 (Mbps)
❤️Suitable for: computer, TV, projector (transmitting mode)/car, speaker, earphone (receiving mode)
❤️Product size: 59.5*22*12mm (length * width * thickness)
❤️Package weight: 39g
❤️Packing size: 103*68*18.3mm

Product features:
-❤️2 in 1 function: Bluetooth transmission mode: convert wired audio into Bluetooth signal and transmit it to Bluetooth device. Bluetooth receiving mode: Receive Bluetooth signal and transmit it to wired audio through Bluetooth connection.

-❤️Connect the 3.5mm audio interface of the TV, and transmit the sound to the earphone via Bluetooth, so that you are not afraid to disturb your family when watching late-night movies (note: it is used in the transmission mode (TX)).

-❤️Connect the Bluetooth connector to the car AUX port through the adapter/transfer cable, and connect the Bluetooth to the car audio, you can not only make calls, but also listen to dynamic music, so that your journey is no longer lonely.

-❤️High-resolution restoration of lossless sound quality, bringing CD-level music experience.

-❤️Built-in rechargeable lithium battery, which can be used for 4 hours with one hour charge. It can be used while charging when the battery is low, which is convenient and worry-free.

-❤️Bluetooth 5.0 + EDR can achieve a more stable connection with the device, low power consumption and high rate stable signal transmission, and listening to songs more smoothly.

-❤️Small size, no driver required, easy to use. It is suitable for devices with 3.5 mm jacks.

Packing list:
1* Bluetooth receiver transmitter
1* USB charging cable
1* 3.5mm audio head
1* User Manual