What we sell?EMB EMIC2500 Audio 4 Channel Quad UHF Handheld Wireless Microphone System Mic 6-8 Hrs EMIC2500APerfect for:Vocal Lesson / Karaoke / Studio / Live GigProduct Highlights: If you couldn’t tell, we obviously love microphones. They come in many different shapes, sizes and applications. Nowadays, many electronic solutions seem to be gearing more and more towards wireless capabilities. When it comes to our concern, microphones have been wireless for quite a while, but not until recently has technology allowed it to really take off when it comes to overall quality (and completely replacing wired mics when applicable). There are quite a few models out there worth looking at, so today we are introducing the EMIC2500 Four Channels Quad Wireless Microphone System for you guy to check it out.This particular wireless microphone has made a name for its self through time and use. EMB Pro is big in the headphone world but they’re up there with microphones as well. The EMIC2500 comes with DPLL Receiver DSP modulation transmitter for amazing sound quality. In terms of build, it’s very sturdy with some metal housing. The bandwidth comes in at fixed UHF frequencies (will rarely get any interference, if ever). A few other additives you’ll be getting with this higher-end wireless microphone is illuminated graphic display (both the mic and receiver), an auto-lock function so you don’t accidentally change settings mid-mic use. This set come with a great price range for every household, the EMB 2500 is by far one of the best wireless microphones in the in the handheld business today at a great affordable price.Technical Details: SYSTEM: Carrier Frequency Range: UHFFrequency Setting Mode: PLLModification Mode: FMStability: ± 30ppmAmbient Temperature:-10°C ~ +40°CMax Deviation: ±15kHzDynamic Range: > 90dBS/N Radio: > 98dBT.H.D: < 0.5% Frequency responese: 40Hz ~ 15kHz (±3dB) Operating Range: 50m (Ideal Condition)AF Output: Mixed: 0 ~ ±200mV, Balanced: 0 ~ ±400mVRECEIVER: Receiving mode: DPLL  Sensitivity: 12dBu/v Sensitivity Modification Range: 12 ~ 32dBu/v Audio Ouput: Balanced: 0 ~ 0.5V/600k , Mixed: 0~0.5v/5kPower Adaptor: 110-120V/220-240V, 50HzTRANSMITTER: Microphone: Dynamic (Hand-Held) - Condenser ( Body-pack Transmitter / Headset Microphone ) Antenna: Built-in | Modulation: DSP RF Output: 10mW~30mWMax Deviation: ±25kHzBattery: 2 Pieces of 1.5V AA Battery - 6~8 HoursPackage Contents: 1 * Receiver4 * Handheld Microphone8 * 1.5V AA Battery1 * 1/4" to 1/4" Cable1 * Power adapterPolicy  // NEED TO PRICE MATCH?See lower price? We will try to give you an even lower price! Just ASK us!// NEED TO TALK TO US?Just email us and we will get back to you within 24 hours// NEED TO RETURN or EXCHANGE?You can return the unit with Ebay Easy Return step or just email us and we will tell you the exact instruction on how to return the unit.  We will also give you an RA# so the unit won't be lost.// OUR RETURN / EXCHANGE POLICY30 days full refund . We will pays for shipping 2-way for any defective units . Unwanted? Just return it ot us for full refund . NO QUESTIONS ASKED!