Holiday Shipping Details & Extended Holiday Returns 
- How can you watch football live without the shocking sound of speakers?
- Now the B2 Bluetooth Audio Transmitter connects directly to your projector, TV and speakers. Let you directly experience more exciting live Match.
In a complicated environment or in the quiet middle night.
Maybe your family has rested. With a B2 usb bluetooth transmitter you can continue to cheer for your team.
A completely private home theater that does not need to disturb anyone.
B2 usb portable bluetooth receiver is equipped with 2 modes.
The transmitter mode can be connected to projectors/TV boxes/computers and other devices to expand wireless music.
The receive mode can play music from your tablet/notebook/mobile phone and other mobile devices to any wired speakers.
It can even upgrade your old speakers and vintage car speakers. Let old equipment play new music again.
In May 2023, we upgraded the motherboard and firmware of B2 again. Realized (receiving and transmitting) two modes do not interfere with each other, more stable and clearer sound quality.
B2 has built-in receive and transmit modes. Compatible with desktop computers, notebooks, car speakers, Bluetooth headsets, Bluetooth speakers and projectors.
You only need a USB port to power it and transfer data. B2 has two 3.5mm audio interfaces. It has dual channels audio so that the input and output models do not interfere with each other.
You don't need to configure the Bluetooth mode every time. No driver needed. Just get close to the bluetooth device and it will connect automatically. If your device is disconnected due to interference. B2 will look for your bluetooth device again to connect automatically.
You can use B2 Bluetooth receiving mode. Your car speakers can immediately become a wireless audio system. The music of your mobile phone can always accompany you on the road.
The B2 Bluetooth adapter is only 1.1 x 0.8 x 0.2 inches and 0.65 lb (300 g). It is about the size of a Quarter cent coin (25 cent coin). You can put it in your pocket or travel bag.
| Products | ||
|---|---|---|
| Bluetooth Version | 5.0 | 5.1 |
| Transmission distance | 33 Feet/10 M | 49 Feet/15 M |
| Transmit and Receive Mode | ||
| Automatically Reconnect when Disconnected | ||
| Built-in Microphone | × | |
| Callback Function | × | |
| Audio Transmission Interface | Dual 3.5MM Audio | Single 3.5MM Audio and dual RCA Audio |
| Power Support | USB Power Supply | Micro USB Power Supply |
| Connectivity | USB*1, 3.5mm audio*2 | RCA Audio*2, 3.5mm Audio*1, Micro USB*1 |
| Suitable for Scene | Portable Mobile Space | Indoor Fixed Space |
