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Specifications

1, Work voltage :3.6-4 .2 V
2, Work current: <30mA (Bluetooth module)
3, Work current: <400mA (power amplifier, Bluetooth )
4, Standby current: <3mA
5, Scope: <10 meters of wireless communication (consistent with the Bluetooth protocol specifications CLASS 2) 
6, Transmit power: Class2   less than 4dbm, low radiation.
7, Spread spectrum: Frequency Hopping Spread Spectrum
8, Bluetooth version: compatible with V2.1, V2.0, V1.1 and V1.2 standard.
9, Bluetooth protocol support: A2DP, AVRCP
10, Frequency range :2.401-2 .480 GHz (2.4GHz ISM Segment)
11,The receiver sensitivity: <-90dBm, BER <0.1%
12, SNR: 95dB
13, Distortion: <0.2%
14, Frequency Response: 20HZ-20kHZ
15, Operating temperature: -10 °C ~ 55 °C 
16, Coincide with IEEE 802.11
17. we have 8 standard colors : black, white, silver, red...etc.