The 12W voice amplifier is a multifunctional loudspeaker with sound amplifying, digital music playing and radio function. Adopting high-power speaker, the sound effect of this amplifier is clear, loud and the transmission range is wide. Made of ABS material, it is an amplifier that has a long service life. With digital display, it is easy to know broadcast channel, power, etc. One-key recording function makes it convenient and quick to operate. It adopts imported high-power amplifier chip and advanced main control of fidelity amplifier. The length of the product is 11.6cm, the width is 8.6cm, the height is 4.1cm. Our product is perfectly suitable for teachers, sellers, promoters, guides, instructors, etc. The small and compact sound amplifier has a stable and reliable performance. It has the recording function and you can record any important things in class or meeting. It is more than just an amplifier and you can play music from TF card or USB flash drive. So it is also suitable for people who like local FM radio. Item Name: Amplifier Material: ABS Model: PR16R Maximum Output Power: 12W Output Impedance: 2 FM Frequency: 87.5 -108MHz Charging Voltage: DC 5V 1000mA Battery: Built-in 1200mAh Rechargeable Battery(Included) Charging Time: 4~6 Hours Working Time: 4~8 Hours (Music Mode); 5~8 Hours (Microphone Mode) (Depends on the Volume You Control) Storage Type: U Disk (Max 64G)/TF Card (Max 32G) (Not Included) USB Specification: USB2.0, Compatible with USB1.1 (USB3.0 is Not Supported) TF Card: Support TF Card Audio File Playback Audio File: Support MP3WMA (Rate: 16-320Kbps) Recording Format: WMA Features: Multifunctional, Mini, Digital Display Size Details: 11.6cm x 8.6cm x 4.1cm/4.57" x 3.39" x 1.61" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Amplifier 1 x Microphone 1 x Charging Cable 1 x Sling 1 x Back Clip 1 x User Manual