S19 Mini Portable Voice Amplifier Teaching Tour Guide Sound Speaker Rechargeable Player With Microphone For Teachers

Features:1. [Clear sound] The 80mm large-diameter composite high-pitched crystal ic horn is equped with carbon lattice graphene diaphragm to greatly restore the real human voice2. [clear no whistling] Equped with IC/CVC dual technology, through acoustic experts to tune the three-tone ratio combined with the prince of frequency shift, greatly reduce the whistling frequency3. [-ion battery] ble battery life, according to the teacher's frequency of 2 claes per day to calate the normal full charge can be d for about 2 weeks4. [Voice loop broadcast] Plug in the memory card /U disk to start the loop playbaof leon preparation loop playback, more worry5. [Multi-scene application] Suitable for teaching/tour guide/party, et

:Number of speakers: 2Output power: 8wBattery capacity: 2200mAhSNR: ≥75dBFrequency response range: 100HZ-20KHZck: MonoEffective distance: 15 metersPackage include:1* speaker +1* microphone +1* charging cable +1*yard