Retekess Tour Guide System Bundle with PR13 Portable FM Radio Receiver, Lightweight, TR503 Wireless Microphone Headsets for School, Conference, Factory(3 Transmitter 40 Receivers)

Q:why the Sound is very weak? A:The sound not only depends on the mic volume but also depends on receiver volume.So please add the volume of microphone with pressing “+” once by once(Do NOT hold on ). And also please volume up receiver. f no sound after adjust the volume, the MIC maybe disconnected and please re-pair it via adjust transmitter and receiver to same frequency. Easy to operate. You just need to find a frequency, only need to adjust the receiver and transmitter in the same frequency via the front and back buttons. 15 levels of transmit volume adjustable. Built-in rechargeable lithium battery, about 8 hours of continuous use radio receiver. High sensitivity and selectivity with excellent reception. Automatic search and manual search the radio stations. 5 station presets: you can manually store five favorite stations. Press the 1-5 keys to quickly select storage station. Mono / stereo selectable. With 24-hour digital clock. 30 level volume control. Lock switch to prevent accidental operation. Expandable & DIY.1 transmitter can pair up to countless receivers. If you have more than one Tour guide or speech area you would like to add, just DIY and fulfill your needs. Wide Use. Perfect for teaching, tour guide, sales, speech, conference, meeting, karaoke,church translation, etc with High anti-interfering ability. Package Includes: 3 x Microphone. 40 x FM receiver. 40 x Earphone. 40 x Lanyard.

• Digital fm radio; no AM; use an advanced DSP chip as the radio brain;making the signal analysis and reception ability stronger and channels more stable
• Portable fm receiver; size 3.7x2.1x0.8inches; weight 1.41oz; small and slim; can be put into pocket; handbag; backpack or shopping bag easily; the radio has a lock key to prevent improper operation when used
• Convenient operation; with lock key and 5 storage positions for the station; each storage position can store a frequency; very suitable for drive-in theaters and church
• Large LCD screen;built-in double 16-bit mirror converter with low audio distortion output;when receiving the stations; please extend the earphone cable as long as possible to get radio signal
• The shell is made of high-quality ABS material and yake oil with fine workmanship;strong shock and fall resistance ability; operated by 2XAAA batteries (not included); changing the battery is more convenient