Features: It can transmit lossless music through the memory card and AUX input jack, and also has a powerful microphone function. It is especially suitable for application area such as car music transmit, international tourism, large meeting, driving school, education and training, etc Features: Portable fashion design, good touch feelings.  Support transmit lossless music through the memory card and AUX input jack.  3.5mm AUX input: transmit music from your smart phone, computer, MP3 or CD player.  Transmit frequency adjustable from 76-108MHz.  Support store five commonly used transmission frequency.  Built-in microphone, support external condenser microphone.  Long press the MIC button to speak, release to end, easy to use.  Support microphone reverberation, delay effect.  A variety of parameters adjustable, has a good anti-whistle effect.  Support 4 levels of power output, the maximum transmission distance of 300 meters in the open air.  Built-in high-capacity polymer lithium battery, long battery life.  Transmitter frequency: 76-108MHz;  Frequency increase: 0.1MHz;  Frequency stability: ±10PPM;  Output impedance: 50Ω;  SNR: ≥70dB;  Frequency response: 30Hz~15000Hz;  RF output power: LV0: 0.061W, LV1: 0.181W, LV2: 0.664W, LV3: 0.720W;  Transmission distance: LV0: 10m, LV1: 50m, LV2: 100m, LV3: 300m;  Support mp3 format: FLAC, WAV, PCM, WMA, MP3;  Support memory card: Max 32GB;  Power: Built-in 2000mAh polymer lithium battery;  Working hours: 6-8 hours;  Charge: DC 5V 1A, Micro USB jack;  Size: 99 x 58 x 15mm / 3.9 x 2.2 x 0.6 in;  Weight: 89g / 0.2lb;     Applications: Driving school teaching.  Campus teaching.  Stage directing.  Public speech.  Tourism guide.  Car walkie-talkie, MP3 audio transmission.  Home wireless audio system.  Wireless meeting system.  Simultaneous interpretation.  Outdoor camping.     Package Included: 1 x T600 FM transmitter;  1 x Antenna;  1 x USB Charging Cable;  1 x Wired Microphone;  1 x Hand Strip;  1 x English Manual