DKULMN Megaphone, Portable Rechargeable Explosion-Proof 20W Handheld Megaphone for Indoor/Outdoor

Chassis material: ABS high quality new materialRecording function: 120 seconds high-definition recordingTransmission distance: 250 metersPower supply: 5V charging or external dedicated lithium battery charging standSize: 150MM * 240MMPower: 1500MAH lithium batteryMaximum power: 20WOutput impedance: 4 ohmsFrequency response range: 100Hz-10KHzDistortion: 5% maxnote:Pay attention to the positive and negative polarity of the lithium battery. Generally, one end of the spring is equipped with the battery negative. If it is reversed, the machine will not work.After getting the machine, first fully charge the battery. After the battery is full, the charging indicator will go out and stop charging.When the power indicator is dimmed or the machine is not working properly, it needs to be charged in time.When you are not using the machine temporarily, you must turn off the powerWhen you estimate that the machine may not be used for more than 3 months, please be sure to fully charge and remove the battery to avoid battery damage.

• Transmission distance above 250m
• Maximum power: 20W
• Charge for 6 hours, you can talk for a day
• 120s high-definition recording function
• The sound of the horn is loud, and it must not be used against other people's ears to prevent damage to others