SPK-B Bluetooth module is designed for product design of the Bluetooth speaker. Has the characteristics of high integration, small size, just with a few external components will be able to achieve its powerful features. And have A2DP, AVRCP transmission and remote control protocol any Bluetooth audio device (such as: Bluetooth-enabled mobile phone, computer Bluetooth adapter, etc.) to establish a connection, to achieve high-quality stereo audio stream wireless receiver, and audio playback remote control.
SPK-B Bluetooth stereo receiver module to the user interface, remote control buttons work the status indication interface, stereo audio output interface.
Built-in lithium battery charging circuit.
Class2 power level.
The powerful noise elimination circuit.
Effective transmission distance up to 20 meters.
Very low operating voltage VBAT: 3.4 - 4.2V
Tiny surface mount packages: 14 x 23mm.
Follow Bluetooth V2.0 + EDR Bluetooth specification.
Support A2DP V1.2, AVRCP V1.4 profiles.
Integrated EEPROM, configurable operating modes and parameters
Stereo audio output can directly drive 40mW @ 32Ω speeker without the need for DC-blocking capacitor
Integrated power-on reset and programmable low voltage monitoring function
Five control buttons, including the switch machine play pause button, volume plus the volume down on the one, the next one. Supports no button automatic connection function.
The two indicators are used to indicate different working status