A Bluetooth audio transmitter module is a device that can transmit audio signals via Bluetooth technology. Below are some commonly recommended Bluetooth audio transmitter modules:
FSC-BP401 Bluetooth Audio Transmitter: Developed by Shenzhen Feiyitong Technology Co., Ltd., this transmitter uses Nordic Semiconductor's nRF5340 SoC, featuring LE audio and Auracast capabilities. It provides high-quality, low-latency LE audio connectivity with a latency of approximately 25 milliseconds and a line-of-sight transmission distance of up to 100 meters. Measuring 32.8 x 16.3 x 8.5 mm, it supports plug-and-play and is suitable for devices such as hearing aids, headphones, and speakers.
NXH3675UK: A product of NXP Semiconductors, supporting the Bluetooth 5.3 protocol and featuring Auracast functionality, it can be used as both a transmitter and receiver. Utilizing an Arm Cortex-M0+ processor, it achieves latency below 20ms for gaming scenarios, below 35ms for standard LE connections, and less than 60µA deep sleep current. It is suitable for various audio devices including communication headsets, gaming headsets, soundbars, and TV transmitters.
EWM104-BT5125 Series offers a variety of high-performance Bluetooth audio transmitter modules. Recommended models are listed below based on their features:
High-Performance Flagship Model:
EWM104-BT5125 Series:
Chip Solution: Qualcomm QCC5125, supports Bluetooth 5.1 protocol
Audio Processing: Built-in Kalimba DSP, supports aptX/aptX HD high-definition encoding, providing CD-level sound quality
Interface Options: Supports I2S, DAC, SPDIF, and other output interfaces
Communication Distance: 120 meters (in clear, open environments)
Application Scenarios: High-quality stereo headphones, gaming headsets, portable Bluetooth speakers
Professional Development Model:
EWM104-BT3040 Series:
Core Advantages: Qualcomm QCC3040 chip, 24bit/96kHz high-definition decoding, sound quality approaching wired audio
Ultra-Low Latency: 60ms laboratory-tested latency, excellent gaming and multimedia experience
Deep Noise Reduction: 35dB active noise reduction + ENC ambient sound pass-through
Compatibility: Supports aptX HD, AAC, SBC, and other mainstream audio protocols. Application Scenarios: TWS earphones, smart speakers, car Bluetooth audio systems
Low-Cost Practical Options
EWM104-BT60SP2/SP3
Features: Dual-mode Bluetooth BLE 5.2, supports SPP serial port pass-through
Version Differences: SP2 has no button function, SP3 has button function
Price Advantage: SP2 is ¥6.80, SP3 is ¥8.50
Application Scenarios: Simple Bluetooth audio transmission, prototype development
E104-2G4U04A
Chip Solution: CC2540, supports BLE 4.0 protocol
Interface Type: USB interface, built-in PCB antenna
Price: ¥19.80
Application Scenarios: Microcontroller development, protocol analysis, simple data transmission
Selection Recommendations
Professional Audio Development: Choose the EWM104BT5125 series, comprehensive sound quality and functions
Gaming and Multimedia Needs: EWM104BT3040 series, outstanding ultra-low latency performance For beginner development/low-cost applications: EWM104BT60SP series, offering the best price-performance ratio.
For simple data transmission: E1042G4U04A, suitable for beginners and basic applications.
All EBBY products come with comprehensive technical support and development documentation. We recommend selecting the appropriate model based on your specific application needs and budget.