Does the humanized design, bring your own two hanging hole horizontal, vertical installation, convenient installation;

Does the high quality engineering plastic injection molding, durable, not deformation, not faded, black and white optional;

Does configuration 5 inch high-fidelity bass unit and 1.5 inch tweeters, beautiful timbre, phonetic reduction degree is high;

Does the built-in class D 2 x 20 w power amplifier circuit, the sound quality is exquisite, strong power;

Does the use of frequency range: 2400-2483.5 MHz;

Does modulation methods: GFSK;

Does boot automatically into the state of frequency, frequency of open automatically after a successful launch, transmission power: 10 DBM; With the efficient use of the wireless speaker from 20 meters;

Does with built-in rechargeable lithium battery, travel charger,

Does the continuous audio transmission time 6 hours; With external audio input function;

Does wireless microphone transmitter using built-in microphone design, also support with the microphone input, can be hand-held, head;

Does wireless microphone transmitter with volume control buttons, adjustable volume and with laser pen USB module implements PPT pages;

Does wireless microphone transmitter has a liquid crystal display (LCD), can display the current volume, current channel, the information such as battery capacity, charging status;

Does with a wireless microphone can be used in any classroom, and mutual interference. Really do tutor a mic, clean environmental protection;

Does boot automatically enter into the state of the frequency, the frequency after the success, transferred to receive state; Without manual intervention;

Does the built-in 2.4 G wireless digital receiver, receiving channel number 80;

Does have 1 microphone stereo line input, 1 road input, 1 100 v constant pressure signals input;

Does the receiving sensitivity: - 85 DBM, effective receiving radius of 20 meters.

Does the flexible connection and quick installation, easy to use;

Does use AC110V ~ AC220V wide voltage power supply;

Does the input channels are sealed potentiometer volume knob;

Does very applicable school multimedia classrooms, meeting rooms and other places;

Does the output power: 20 w x 2 @ 8 Ω;

Does the input sensitivity: 0.5 V.

Does the output frequency response: 60 hz - 18 KHZ / 1 w, plus or minus 0.5 dB;

Does harmonic distortion: 20 hz - 20 KHZ / 1 w, 0.05%;

Does the damping coefficient: > 200 @ 8 Ω / 400 hz;

Does conversion rate: 30 v/US;

Does the channel separating degree: > 75 db (no weight);

Does signal-to-noise ratio: > 95 db (no weight);

Does amplifier type: class D digital power amplifier;

Does indicate type: power, channel signal;

Does protection type: over temperature protection, overload protection, mute switch machine;

Does the input types: AV lotus, 6.5 socket, plug-in terminals;

Does apply to power: AC110V - 240 - v / 50 hz - 60 hz;

Does the product size: 170 * 185 * 250 mm;

Does the net weight: 4.7 Kg (1);