Wireless MP3 Transmitter/ Tour Guide with MP3 Function

Spec

*Performance characteristics.
* Operate frequency: 2400-2483MHz
* Channel: 20
* Small in size, high integration
* Shortest sound delay: <0.5 ms
* Low power consumption, wide voltage input, the transmitter can work at least 6 hours continuously, the receiver can work at lease 30 hours continuously.
* Real digital transmit, with the encrypt pairing function, the receiver which not been paired will not receive the signal of this group.
* Automatic scan function. (Refer order description)

Description of Wireless Portable MP3 audio guide transmitter

Power(input voltage) 3.7VNokia lithium battery
Work currency 120Ma(MAX)
Operate tenperature -25 ~ 85 C
Frequency 2400 --~ 2483MHz
Modulate GFSK
Channel width 4MHz
Channel choose method One-way loop
Transmit power 19dBm
Input level Max 1.0Vpk
Input impedance 10k Ohm
Input interface Two kind input mode: 1. Microphone input2. Stereo sound input(confirm when order)
Output impedance 1k Ohm
Input-output gain ratio 1: 1
Delay < 0.5 ms
SNR 95 dB
Distortion 0.3 % @ 1KHz
Dynamic range 90dB
Left and right channel isolation 85 dB