Voice Amplifier Portable FM Radio Wired Speaker Voice Amplifier for Teacher

Description Voice Amplifier Portable FM Radio Wired Speaker Voice Amplifier for Teacher Shopping Guide The Aged Guide and So On Built-in Rechargeable Battery ❶ Wired Portable Voice Amplifier (Wireless Amplifier, please buy other models of our company.) ❷ Sound is loud and clear and wide coverage by using high power speaker. ❸ The product is a multifunctional portable amplifier which is provided with a plurality of sound amplification, music playing and radio(FM),TF function. ❹ Please charge first for the first time.Amplifying time :8-12 hours,Charging time :4-6 hours. High capacity,high safety,environmental protection class A 18650 lithium battery. Please charge first for the first time. Data sheet Frequency response :50Hz–12000Hz Output power: 12W Charge voltage :DC 5V 1A Charging time :4-6 hours Music time : 6-10 hours Amplifying time :8-12 hours Operation temperature : -10℃45℃ Output impedance:2Ω Distortion rate:3%