Hearing Amplifier Rechargeable Ergonomics Sports Neck Hanging Electronic Sound Collector

Feature: 1. Sound amplifier uses full digital signal processing(for DSP). 2. 4 Channel Wide Dynamic Range Compression Technology (WDRC). 4 program patterns correspond to 4 scenarios. 3. Automatic gain control (AGC), overall output adjustment. Excellent output performance, high sound quality and low distortion. 4. Hanging neck movement style, suitable for the crowd with poor hearing, effective happy conversation in family gatherings. 5. Sweat‑proof and ergonomic design, suitable for outdoor activities, such as running, biking, hiking, hiking, rock climbing, etc. 6. Durable and flexible design, high‑quality sound quality, compact and easy to carry, can last 80 hours of battery life, a very good product, worth having. Specification: Item Type: Sound Amplifier Material: ABS Color: As Pictures Shown Weight: Approx. 99g3.5ozModel: HWS137B Maximum output: 108 dB Average output: 106 dB Full range sound gain: 35 dB Total harmonic distortion: <5percent Equivalent input noise: 25dB Frequency response: 300Hz-4200Hz Rated working voltage: 3.7V Rated working current: 1.7 mA Battery: Built-in charge 3.7V 110mAh (lithium polymer battery) Charging voltage: DC4.75-5.25V Charging time: 2 hours Full charge life: 80 hours Operation steps: long press the middle button can be turned on or off, perfect sound amplification experience, simple operation, worth having. . Package List: 1 x Sound Amplifier1 x Manual1 x Charging Cable4 x Ear Cap