Blue Dot Charging Machine Model B-HA02

• Blue Dot Charging Machine Model B-HA02 • 1 year warranty • Adjustable volume 4 levels • Continuous use time / charging 1 time: 80 hours • Charging time: 4- 6 hours • Choose to change the noise mode 4 mode • Voltage: DC 3.7 V • Electric current <2 mA • Battery type: Line (60 mA) • Size 14 * 40 m M. / Weight 7 g.

Equipment in the box • Headphones 5 sizes • 1 cleaning brush • USB adapter • Storage box.
Please understand the details before ordering. - The product is purchased and does not accept back. - In the case of the device there is a problem. Please contact the customer service center. Tel. 038-314-118 - 1 year warranty with Bel Mesk Thai - Suitable for those who are effective, such as the elderly. Sounds (whistle) is a general problem of listening. Regardless of any model, • Why is there a whining? In the listening aid.
Answer: All types of sound amplifier systems can cause feedback because the sound from the speaker into the microphone and repeatedly expanded.
Prevention/edit: 1. Choose the headphones to fit the ear canal size. (In the box, there are 5 sizes to choose from). Click on the headphones. Do not cause looseness. Then turn on the listening and adjust the volume as needed. (Do not turn on the device before entering the ear) to prevent the sound from the speaker to the microphone. • Peak Gainn (DB): Max.gain 50 DB (Output Minus Input) • Frequency Range (HZ): 300-5000 HZ • Noisereduction 500Hz: 5% L 800 HZ: 3% L 1600 Hz: 3% • Equivalent Noise (DB): 28 DB
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