1. 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 voltage: DC 3.7V DC 5.0V 4. Li-ion battery capacity: 1500 mA 5. Frequency response range: 40Hz-20KHz 6. Distortion: +/- 1% (3.7V, 1Khz, 1W) 7. Signal to noise ratio: 83dB 8. Playback format: MP3 9. Impedance: 2Ω 10. Operating temperature: -5 ~ 40 degrees Celsius 11. Size: 85 x 85 x 34mm
Package includes: 1 x mini audio speaker 1 x Wired Headset Microphone 1 x Belt 1 x usb data cable 1 x instruction manual
