Bluetooth 4.0 audio hang modul Autó Telefon

Features:
th 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 Nokia 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 equipm