YT-M95 Bluetooth Wireless Hearing aids for senior Features : * Easy carrying * Long playing time * Fasion design * High performance-price ratio Specification: Maximum total sound pressure level 90 (dB SPL) ≤115dB+3dB High frequency average total sound pressure level 90 (dB SPL) 110dB±4dB Full sound gain 30dB±3dB Frequency range F1<400Hz, F2>4700Hz Total harmonic distortion ≤5% Level input noise 29dB+3dB Battery capacity 300mAH Earbuds Battery capacity 50mAH Earphone use time 12 hours Battery type rechargeable lithium battery binaural applic…