Two-in-One B20 Bluetooth Adapter and Receiver with CSR8675 Chip, Bluetooth V5.0, apt-X HD, LL, AAC, Dual Stream TX, Multipoint RX, SPDIF and I2S Interfaces, Built-in 600mAh Battery, Black
Two-in-One B20 Bluetooth Adapter and Receiver with CSR8675 Chip, Bluetooth V5.0, apt-X HD, LL, AAC, Dual Stream TX, Multipoint RX, SPDIF and I2S Interfaces, Built-in 600mAh Battery, Black
B20 Two-in-One Bluetooth Adapter Receiver with CSR8675 Chip, apt-X HD, and Dual Stream TX
This B20 Bluetooth adapter and receiver provides a practical solution for adding Bluetooth connectivity to audio equipment that lacks it. Whether you need to stream music from a phone to an older stereo system, or transmit audio from a TV to Bluetooth headphones, this device handles both roles. Built around the CSR8675 chip with ANC noise cancellation, it delivers clear audio with support for high-definition codecs including apt-X HD. The unit works with Android and iOS phones, tablets, and other Bluetooth devices that support the A2DP protocol.
Features and Construction
This adapter combines transmitter and receiver functions in one compact unit. It uses the CSR8675 chipset, which includes noise reduction and echo cancellation technology. Bluetooth V5.0 ensures stable connectivity with a range of over 10 metres in open space.
TX Dual Stream Mode
When set to transmitter mode, the adapter can send audio to two Bluetooth speakers or headphones at the same time. This is useful for sharing music across multiple listening devices without lag. The TX mode supports apt-X HD, apt-X LL, apt-X, and SBC codecs.
RX Multipoint Mode
In receiver mode, the adapter can connect two mobile phones simultaneously. This allows you to switch between devices without re-pairing. The RX mode supports additional codecs including AAC alongside apt-X HD, apt-X LL, apt-X, and SBC.
Audio Interfaces
The unit provides SPDIF and I2S audio input and output interfaces that can be switched freely. This flexibility allows connection to a wide range of audio equipment, from digital amplifiers to older analogue systems.
Battery and Power
The built-in 600mAh rechargeable battery provides extended usage without frequent recharging. Charging takes approximately 3 hours via the micro USB 5V / 0.5A connection.
Battery Life
In receiver (RX) mode, the adapter runs for about 18 hours on a full charge. In transmitter (TX) mode, battery life extends to around 22 hours. This covers most daily listening sessions.
Charging Specifications
The charging current is approximately 200mA, and the working current is less than 35mA. The micro USB port is widely compatible with standard phone chargers and power banks.
Working Frequency and Sensitivity
The device operates in the 2.402GHz-2.480GHz frequency band with a sensitivity of -80dBm at less than 0.1% BER. The signal-to-noise ratio is at least 75dB with distortion under 0.1%.
Benefits and Buying Value
This adapter eliminates the need for separate transmitter and receiver units, saving space and cost. It works with a wide range of devices and supports high-quality audio codecs for improved sound.
Reuse and Low Maintenance
The rechargeable battery reduces the need for disposable batteries. The device is simple to use with no need for cumbersome driver downloads or apps. Pairing is straightforward via standard Bluetooth.
Why Choose This Product
The CSR8675 chipset provides advanced noise cancellation and support for apt-X HD codec, which delivers near-CD quality audio over Bluetooth. The dual stream and multipoint features add flexibility that many simpler adapters lack.
