Specification:

Size: 21.7x15x21.9mmWorking voltage: DC 3.7V +5%, -10%Working current: 1.4mAFrequency response: 300-5000 HzEquivalent Input Noise: 29dB, +3dBMaximum Saturation Acoustic Output: 128dB, +3dB

Features:

1. Mini size–Invisible to wear2. Easy to operate for elderly3. Digital chips, Noise reduction-Greatly reduce noise, providing high clear sound quality.4. USB Rechargeable–no need to replace battery,use anytime,anywhere5. Around 30 Hours to use after fully charged6. Comfortable Listening

Package Include:

1 Earphone1 Charging Dock1 Charging Cable1 Cleaning Brush4 Earbuds1 Manual1 Warranty Card1 Qualified Certification1 Quick Guide2 Accessory Box1 Package Box