Rolton K400 Mini Audio Speaker Megaphone Voice Amplifier Support FM Radio TF MP3, K400 abbe refractometer parts and functions Camera + video + bluetooth

Camera + video + bluetooth + drawing: large optical system

Brand LABPRO Outer Diameter Flange: 340 mm

"sku":"4336970760290"

·       Auto Zero Facility

Heating Mantle

Rolton K400 Mini Audio Speaker Megaphone Voice Amplifier Support FM Radio TF MP3, K400 abbe refractometer parts and functions Camera + video + bluetooth1. Light to 133 grams, easy to wear, lecture not tired 2. Using 13 core Rutilon speaker, with excellent sound quality, loud volume does not break the sound and not harsh 3. Using digital efficacy system, low distortion, high clarity 4. Noise reduction microphone noise reduction speaker, no whistling, so that the sound is more dynamic 5. Support insert TF card U disk, can be used while charging Parameters: 1. Material: ABS 2. Rated power: 5W 3. Input