Bluetooth 5.0 Audio Transmitter Receiver Optical Fibre Adapter CSR8675 with APT-X Low Latency for TV CD Home Theatre Hi-Fi, 20m Range, 54x54x15mm, Black
Bluetooth 5.0 Audio Transmitter Receiver Optical Fibre Adapter CSR8675 with APT-X Low Latency for TV CD Home Theatre Hi-Fi, 20m Range, 54x54x15mm, Black
Bluetooth 5.0 Optical and AUX Audio Adapter with CSR8675 and Switchable TX/RX
This Bluetooth 5.0 audio adapter is designed for sending and receiving wireless audio through optical or AUX connections. It uses a CSR8675 chipset and supports APT-X, APT-X Low Latency, AAC, and SBC, with a stated delay below 40 milliseconds. The unit can switch between TX and RX modes while powered on, using the switch and M button, rather than requiring a shutdown first. It provides both AUX input and AUX output, plus optical input and optical output, so it can connect to equipment such as TVs, CD players, home theatre systems, computers, and phones, as well as Bluetooth speakers and headphones. Bluetooth range is more than 20 metres, and the built-in 400mAh lithium-ion polymer battery charges through a 5V DC, 500mA Micro USB socket. The housing is black and measures 54 x 54 x 15mm, with an adapter weight of about 35g.
Features and Construction
The adapter is built around the CSR8675 Bluetooth 5.0 chipset and the Bluetooth protocol supports A2DP and AVRCP. These protocols allow it to connect with A2DP-compatible Bluetooth speakers or earphones and to form a wireless audio transmission network. The physical connections include optical input, optical output, AUX input, and AUX output. Mode control is handled by a switch and an M button, and the mode can be changed while the unit is on. The black casing and compact dimensions make it a small inline component for audio setups rather than a large desktop box.
Material and Build
The wireless audio section uses a CSR8675 Bluetooth 5.0 chip. The rechargeable power source is a 400mAh lithium-ion polymer battery, and charging is through a 5V DC, 500mA Micro USB input. The product has a black outer housing and a stated net weight of about 35g, with a packaging weight of about 100g. These details describe the supplied construction without adding claims about drop protection, weather resistance, or extended durability that are not present in the source text.
Size and Practical Fit
The adapter measures 54 x 54 x 15mm. At about 35g net, it is light enough to sit behind or beside audio equipment without adding significant bulk. The Bluetooth range is stated as more than 20 metres, and the Bluetooth frequency range is 2.402–2.480GHz. The compact 54mm square footprint is relevant when placing the unit near a TV, CD player, home theatre receiver, or computer where space is limited.
Uses and Placement
The combination of optical and AUX connections makes the adapter suitable for several audio chains. It can connect to Bluetooth speakers or earphones that support the A2DP protocol, or to phones and computers for music playback. In TX mode it can connect two Bluetooth speakers or two pairs of Bluetooth headphones at the same time. In RX mode two mobile phones can be connected at the same time, but only one phone produces sound, and the first phone to connect is the one that sounds.
Event or Professional Use
For events or professional audio setups, the two simultaneous output connections in TX mode can feed two Bluetooth speakers or two Bluetooth headsets at once. This may be useful where the same audio needs to reach two separate receiving devices without changing cables. The optical input and output allow the adapter to sit within a chain that uses SPDIF optical connections, while the AUX input and output provide a separate analogue path. The stated delay below 40 milliseconds is relevant when matching audio to video on a TV or home theatre system.
Everyday Home Use
At home, the adapter can be used with a TV, CD player, home theatre system, or computer. It can send audio from those devices to Bluetooth speakers or headphones, or receive audio from a phone or computer for playback through connected equipment. The ability to switch TX and RX modes without shutting down makes it easier to change between sending and receiving audio during normal use. The more than 20-metre Bluetooth range gives flexibility in where the receiving speakers or headphones are placed.
Benefits and Buying Value
The practical value of this adapter comes from its switchable TX/RX operation, its optical and AUX input/output options, and its Bluetooth 5.0 CSR8675 chipset with APT-X, APT-X Low Latency, AAC, and SBC support. The <40ms delay and more than 20-metre range are stated specifications, not estimates. The supplied cables cover optical, 3.5mm AUX, 3.5mm to RCA, and Micro USB charging, so the main connection types are included in the box.
Reuse and Low Maintenance
The rechargeable 400mAh lithium-ion polymer battery means the adapter can be used without a permanent mains connection while running, and it recharges through the Micro USB port at 5V DC, 500mA. The source text does not state battery life or charging time, so those figures are not given here. Keeping the unit dry and using the supplied cables for the stated connections are the main low-risk care points supported by the product information.
Why Choose This Product
Choose this adapter if you need a Bluetooth 5.0 audio transmitter receiver with both optical and AUX input/output, a CSR8675 chipset, and the ability to switch TX and RX modes while powered on. It supports APT-X, APT-X Low Latency, AAC, and SBC, and it can connect two Bluetooth speakers or two Bluetooth headphones in TX mode. It comes with an optical fibre audio data cable, a 3.5mm AUX to 3.5mm AUX audio cable, a 3.5mm to RCA lotus head adapter cable, a Micro USB charging cable, and Chinese and English instructions.
