Features: - Track selection: Users can select a specific track directly by choosing the sound numbers and play. - Remote control: Operates up to 400-600 meters in visible line-of-sight conditions (minimum 400 meters). - Supports USB stick, TF card, and small memory card. - Built-in 2200mAh Li-ion battery. - For use as a bird call decoy, MP3 format bird sounds must be downloaded separately. - Applications: Hunting, teaching, meetings, tour guiding, and sales promotion. Specifications: - Color: Camouflage - Model: E76 - Maximum output power: 25W - Frequency response: ≥95dB - External power: DC 10V 450mA/50Hz - Working time: 15-20 hours (fully charged) - Charging time: 3-5 hours (with automatic charge management) - Functions: FM Radio, MP3 Player, Hunting Bird Call - Dimensions: Approx. 110 x 90 x 35mm / 4.3 x 3.5 x 1.4in - Weight: Approx. 520g Package List: - 1 x Voice amplifier - 1 x Charger - 1 x Remote control - 1 x Mini bag - 1 x Lanyard - 1 x Manual Note: Due to geographic variations worldwide, performance data is based on testing in open, flat areas and is provided for reference only. The remote control has a minimum operational range of 400 meters (line of sight). For bird hunting decoy use, MP3 format bird calls must be downloaded separately. Warning: In countries where hunting is prohibited, please use this product with caution. Note: New and old product versions may be shipped randomly. Please ensure you are comfortable with this before placing your order.