Megaphone rechargeable 3.7V20W call/alarm/USB/TF card/recording/Bluetooth Handheld megaphone

• Handheld Megaphone • High Definition Recorder • Digital Circuit • Seven (7) Functions • Battery: 1500mAh Lithium Battery • Recording Time: 120/240 seconds • Audible Range: 500 meters • Moisture-proof and dust-proof designed function buttons, durable to use. • Adopts ABS material to firm the body, more comfortable to hold grab handle according to somatology. • Simple and convenient buttons, easy to operate. • 3.7V supply voltage, with rechargeable battery, safe, stable, durable and long operation life. • Original imported high quality big power recording chip and high quality electronic components. • 120 seconds long and high definition recording with plentiful music and siren sound source. Functions: • Talk • Play • Siren • USB Pay attention to : This product only requires one battery to use. We use rechargeable lithium batteries here, and the reason for designing two battery slots is that we have replaced the previous two non rechargeable batteries with rechargeable lithium batteries, so only one battery is needed for the machine to function properly. Using two lithium batteries can overload the machine's voltage and cause malfunctions