The 12W voice amplifier is a multifunctional loudspeaker with sound amplification, digital music playback, and FM radio functionality. It features a high-power speaker for clear, loud sound with wide transmission range. Constructed from ABS material for durability. Equipped with a digital display showing channel, power status, and other information. One-touch recording function for convenient operation. Uses a high-performance amplifier chip and advanced fidelity audio control. Dimensions: 11.6 cm x 8.6 cm x 4.1 cm (4.57" x 3.39" x 1.61"). Suitable for teachers, sales staff, promoters, tour guides, instructors, and others requiring portable audio support. Compact and reliable design with built-in recording capability for lectures or meetings. Supports music playback from USB flash drive (up to 64GB) or TF card (up to 32GB). Also functions as an FM radio receiver. Item Name: Amplifier Material: ABS Model: PR16R Maximum Output Power: 12W Output Impedance: 2Ω FM Frequency Range: 87.5–108 MHz Charging Voltage: DC 5V / 1000mA Battery: Built-in 1200mAh rechargeable battery Charging Time: 4–6 hours Working Time: 4–8 hours (Music Mode); 5–8 hours (Microphone Mode), depending on volume level Storage Support: USB flash drive (up to 64GB) / TF card (up to 32GB) USB Specification: USB 2.0 (compatible with USB 1.1; USB 3.0 not supported) TF Card Audio Playback: Supported Supported Audio Formats: MP3, WMA (bitrate: 16–320 kbps) Recording Format: WMA Features: Multifunctional, compact, digital display Size: 11.6 cm x 8.6 cm x 4.1 cm / 4.57" x 3.39" x 1.61" (approx.) Note: Color appearance may vary slightly due to lighting and screen settings. Slight dimensional variations may occur due to 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