Cassette adapter with Bluetooth function

Cassette adapter with Bluetooth function.

Bluetooth version: 4.1

Function:

Charging port：Micro USB 2.0 port

Output: Stereo

Provide function to power-on and power-off with soft ware

Output power：20mW
Ultra low reception sensitivity: -92dBm
MIC sensitivity：-38db

Bluetooth operating distance：10M

Voltage for charging：DC 4.75V-5.25V

Frequency response：120HZ-20KHZ

Noise-signal ratio：＞90dB

Operating frequency：2.4GHz