Main Products: Bluetooth Headsets ,Bluetooth Earphones ,Bluetooth Speakers ,Bluetooth Modules ,Bluetooth Glasses
Echo cancelling multimedia bluetooth module
USD $3.5 - $4.5 /Piece
Min.Order:2000 Pieces
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Shenzhen ALMsound Technology Ltd.
Credit Member 4 years 
Business Type: Manufacturer,Trading Company
Shenzhen Guangdong ChinaMain Products: Bluetooth Headsets ,Bluetooth Earphones ,Bluetooth Speakers ,Bluetooth Modules ,Bluetooth GlassesProduct Details
Echo cancelling multimedia bluetooth module
| Spec Item | Range | |
| General | Dimension (mm) | 28.0 x 13.0 x 2.0 mm |
| PCB material | FR4 4 layers | |
| Soldering pin type | Stamp module for SMT | |
| Antenna | Antenna built-in | |
| Firmware memory | ROM | |
| Bluetooth | Bluetooth version | Bluetooth specification: V2.1 + EDR |
| Bluetooth chipset | BlueTunes® ROM BC57F ROM | |
| Profiles supported | A2DP/AVRCP/HFP/HSP | |
| Connectivity | Multi-link - A2DP/HFP | Connect with 2 x host devices (A2DP/HFP) |
| NFC | External NFC module available (Optional) | |
| RF/Wireless | Frequency range | 2.402GHz to 2.483GHz |
| Transmission power | -4 ~ +6 dBm, Class 2 | |
| Sensitivity | -85dBm (typical) | |
| Wireless Range | >10m ( free space) | |
| Audio | Microphone inputs | Stereo or mono line-in |
| Output for speaker | Stereo differential output | |
| ADC sampling | 8 KHz ~ 48 KHz, 16-bit high-quality | |
| DAC sampling | 8 KHz ~ 96 KHz, 16-bit high-quality | |
| Codec | High quality stereo codec | |
| Decoder support | SBC, MP3 and AAC | |
| Noise/Echo reduction | CVC noise and echo reduction | |
| HSP voice | HD voice, bi-directional noise reduction | |
| Electrical | Supply Voltage - Charger | 4.75~5.75V (Recommended) |
| Supply Voltage - Battery | 4.30V (Max) | |
| Supply Voltage | 3.0V~3.7V (Recommended) | |
| Power comsumption - StandBy | ~300uA (typical) @ACL link, Sniff 500ms, LED off | |
| Power comsumption - SCO | ~14 mA (typical) @SCO link, HV3 packet | |
| Power comsumption - A2DP | ~17 mA (typical) @SBC, 48KHz sampling | |
Key Features
1. Bluetooth stereo module for low cost audio products
2. High efficiency PCB antenna built in
3. RF transmission power level control configurable
4. Support for Configurable multi-band EQ and Volume Boost
5. Support for voice prompt
6. On-chip charger for lithium ion/polymer batteries
7. Integrated verification test including functional, RF, acoustic and Bluetooth qualifications
8. Complete environmental & reliability test
9. Verified production line capability and quality system
Product picture
R&D Lab Test
Production Assembly Line
Factory picture
About product
This is a high-quality Bluetooth module with PCB antenna built in, focusing on low cost audio applications, based on CSR BlueTunes® ROM with BC05 multimedia core, support for CVC noise reduction & echo cancellation and tunable audio configuration. The module is elaborately designed in EMI and RF enhancement with fine-tuned RF match and antenna directionality.
About our company
We are an one-stop supplier with professional service in wireless audio products, both in R&D and production quality based on our management system and industrial expertise.
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