1Comfort Fit for All-Day Wear: Designed with universal fit technology, these hearing aids can be worn on either ear without distinction, providing continuous comfort throughout the day. 2Smart 10-Second Delay for Whistle-Free Start: With a 10-second delay feature that initiates our advanced anti-feedback system, the hearing aids eliminate whistling before sound amplification begins. 3Precision Sound Control with DSP Chip: The DSP digital chip offers superior audio quality with finer and clearer sound, thanks to its implementation of multi-channel frequency response compensation, noise reduction, and feedback elimination. 4Complete Accessory Kit: Each set includes a charging case and charging cable for on-the-go power, 8 pairs of silicone ear tips for the perfect seal, 2 cleaning brushes to maintain hygiene, and 2 tuning rods for easy adjustments. 5Visible Battery Life Display: The battery display keeps you informed of the remaining charge of the charging case and hearing aids. Never run out of power unexpectedly. Features: Comfort Fit for All-Day Wear: Designed with universal fit technology, these hearing aids can be worn on either ear without distinction, providing continuous comfort throughout the day. Smart 10-Second Delay for Whistle-Free Start: With a 10-second delay feature that initiates our advanced anti-feedback system, the hearing aids eliminate whistling before sound amplification begins. Precision Sound Control with DSP Chip: The DSP digital chip offers superior audio quality with finer and clearer sound, thanks to its implementation of multi-channel frequency response compensation, noise reduction, and feedback elimination. Complete Accessory Kit: Each set includes a charging case and charging cable for on-the-go power, 8 pairs of silicone ear tips for the perfect seal, 2 cleaning brushes to maintain hygiene, and 2 tuning rods for easy adjustments. Visible Battery Life Display: The battery display keeps you informed of the remaining charge of the charging case and hearing aids. Never run out of power unexpectedly. Note: Wipe the sound amplifier with a clean, dry cloth only. Specifications: Type: Hearing Aid Maximum Saturation Pressure Level: 115dB3dB Output Sound Pressure Level (high-frequency average): 1103dB Full-range Sound Gain (high-frequency average): 305dB Frequency Response Range: 200Hz-5000Hz Total Harmonic Distortion: 3%3% Equivalent Input Noise Level: 22dB Hearing Aids Battery Capacity (Each): 42mAh Charging Case Battery Capacity: 310mAh Material: ABS Color: Blue+Red Hearing Aids Weight: Approx. 3.3g/0.11oz Package Size: Approx. 12.5*9.5*4cm/4.92*3.74*1.57in Package Weight: Approx. 160g/5.64oz Package List: 1 * Pair of Hearing Aid 8 * Pairs of Earcaps (One pair of them is already installed on the hearing aids) 1 * Charging Case 1 * Charging Cable 2 * Cleaning Brush 2 * Tuning Rod 1 * User Manual 1 * Pair of Hearing Aid 8 * Pairs of Earcaps (One pair of them is already installed on the hearing aids) 1 * Charging Case 1 * Charging Cable 2 * Cleaning Brush 2 * Tuning Rod 1 * User Manual