16-channel digital debugging The sound analysis is more delicate, the more channels, the better the hearing quality, and the hearing needs of the hearing-impaired are met more scientifically Stable upgrade of dual anti-whistle Adopt AiClear howling suppression algorithm, combined with tube to the vibration of moving iron structure and algorithm to couple and suppress howling Intelligent noise reduction, natural and realistic The chip intelligently strengthens the human voice and weakens the ambient noise, highly restoring the clear human voice 3D memory silicone Three-dimensional memory shaping, the earphones naturally form a three-dimensional arc Fits the neck with three-point support and is pressure-free It is a hearing aid and a Bluetooth headset, with the Bluetooth 5.3 wireless transmission One-touch answering of children's calls Model:CH-F302 Rated voltage: 5V Battery capacity: 200mAh Battery life: more than 35 hours Bluetooth version: BT5.3 Power off power consumption: Less than 10uA Transmitting power: -2dbm~8dbm Frequency deviation: -15KHz~ +15KHz Receiving sensitivity: ≤-80dbm Maximum OSPL90: Less than 113dB+3dB High frequency average OSPL90: 107dB±4dB Full-range sound gain (average high frequency): 30dB±5dB Total harmonic distortion: ≤5%+3% Frequency response range is not narrower than: 300Hz~5000Hz Equivalent input noise level: ≤27dB+3dB Rated power supply current consumption: 10 (mA) (The product appearance and printed words depending on the batch, but this does not affect use) Color: As shown Material: ABS Package Contents: 1 * Bluetooth Hearing Aid Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.