NE5532 Wireless Stereo Sound Module Bluetooth 4.0 Audio Receiver Board Wide Voltage Conversion OP AMP for Car Phone

Features: 1.Wide voltage conversion module Bluetooth 7v-30v with anti-reverse design allows DIY friends without pressure. 2.Bluetooth module output op amp with NE5532 pre-amplified output signal amplitude, promote common amplifier board without pressure. 3.audio signals with automatic switching function, can guarantee the original amplifier or powered speakers to increase functional status under the Bluetooth function, the implementation of lossless conversion. 4.using picture-board design, up to 4 shelves full effect SMT precision industrial processing. 5.then the power output of the output signal can work automatically, Bluetooth priority. 6.Power :7-30v wide voltage operation. 7.PCB board size: 50x60MM 8.stereo reception 9.or 4.0 Bluetooth V2.0/3.0 10.effective transmission distance: about 10 meters, "about the real differences between specific environmental obstacles." 11.can not be directly connected to speakers. 12.can be an external Bluetooth antenna. External buttons can be accessed by you can not answer " Note: Bluetooth antenna and keys at once welding welding does not give return or exchange." 13.Bluetooth receiver board that not all computers can be paired with. Wiring and Instructions Steps: 1.wide voltage operating range, with anti receiver design, DIY worry. 7-30VDC power supply 2.automatic power work, then the receiver a blinking blue light, good if a direct connection can be automatically connected 3.Open the phone or other Bluetooth devices such as laptops, tablet computers, mobile phone as an example: open its Bluetooth function, the phone will automatically search, automatic pairing with its modules, most mobile phones do not need to enter the key, the individual parts of the phone such as 0000 need to enter key will display the module name M-DIY is connected on the phone after the connection is successful, 4.audio input module audio output jacks audio equipment, or access to the audio input amplifier board, and you're done. Enjoy your own DIY wireless amplifier it. .Input interface can be connected to another source, when the Bluetooth stops working,it will automatically switch to another source 5.after the pairing is successful, the function keys on the module, down song, and volume addition and subtraction, pause can use. Package Included: 1 x Bluetooth 4.0 Audio Receiver Board 3 x Connect Cable