3 degree Noise-canceling modes can be adjusted on your applicable scene. 【Seven Modes Hearing Aids Devices】 Hearing aids with bluetooth have 7 modes (3 degree noise-canceling modes and 4 scene modes) to choose from, which can help you better adapt to your surroundings.Note: After hearing aids is turned on, you need to wait for about 10 seconds before there is sound. Automatically turn on/off when entering/leaving the charging box, manually turn on with just 3 seconds of finger touch. 【Easy to Use】One button operation to achieve volume control, scene mode switch and handfree phone call.35 dB of sound gain is higher than most other hearing aids. The hearing aid's long stem separates the receiving hole from the speaker, avoiding sound return and whistling. 【Excellent Hearing Experience】 2 in 1 bluetooth and rechargeable digital hearing aids reach high quality sound with background noise cancellation function by 16-channel technology.
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