HearAngel® Billions of people worldwide are at risk of hearing damage from headphone use HearAngel® is the hearing safeguarding technology for wireless headphone users who want to listen intelligently

Why provide hearing safeguarding for headphone users? Our ears are delicate, but it is not obvious when we are damaging them Very loud sounds and large sound doses damage our hearing Few people are exposed to very large sounds these days, however many people are exposed to large sound doses Biggest source of large sound dose for billions of people is from headphone use Exponential growth in digital content is driving headphone use and increases in users average sound doses 68% of headphone users* are already aware of dangers and many seek information and protection *University College London student survey for the company

What is the current situation? All smartphones in Europe have the following warning triggered by the volume setting: ‘Listening at high volume for a long time may damage your hearing. Tap OK to allow the volume to be increased above the safe level’ This warning is based only on the volume setting and likely the earbuds provided with the phone It doesn’t take any account of the users listening period or the energy of their content or the use of alternative headphones If adhered to content is inaudible in common listening situations The warnings are generally ignored As a result headphone users listen too loud for too long and are at risk of permanent hearing damage Hearing damage is permanent Creeps up on you, when you know you have it is too late With many disorders you take measures to restore your health Lose your hearing and it is gone - No solution Everyone is listening to loud too long

What is HearAngel®? It is an app and software which provides wireless headphone users the freedom they want and the information they need to safeguard their hearing Enables them to listen as loud as they wish for as long as is safe Measures the sound dose from headphone use – not just the volume Gives users easy to understand information, like a Fitbit for your ears Lets them manage their exposure or choose optional automatic protection

What is HearAngel®?

HearAngel®, One App, Two modes…. For individuals to Safeguard their own hearing using easy to understand information Choose automatic protection, if they wish For parents or carers to Safeguard their children’s hearing Control child’s maximum: - Volume level - Sound dose - Listening period Automatically protect them Responsible parents already aware of the issue 81% Will want to protect their children

What are the benefits to a wireless headphone manufacturer? Hearing safeguarding is a desirable feature and appeals to users and parents alike Be one of the worlds first headphone brands to offer hearing safeguarding features Increase the awareness of your brand through positive PR Differentiate your headphones from others Increase your market share by creating ‘Pull’ from customers at point of purchase Demonstrate your Customer Social Responsibility

What are the benefits to Headphone Manufacturer? Cross platform hearing safeguarding Together we can provide hearing safeguarding regardless of the source of sound

HearAngel® proves the positive effects of ANC/ANR ANC/ANR reduces ambient noise so that the reproduced sound level can be turned down, reducing the users sound doses exposure The experiment below, using HearAngel®, proves this: In a noisy environment with the ANC turned off, play some music and set volume level so that you can hear it clearly After 60 seconds go to the HearAngel® home screen and note 'time left' on the right hand side of the second bar down Now activate the ANC/ANR and reduce the volume to a level where you can hear the music clearly again After 60 seconds go to the HearAngel home screen and compare the 'time left' with the first reading In tests the ‘time left’ with ANC/ANR active will have doubled or trebled, proving that ANC/ANR enables users to listen safely, for much longer

Who are HearAngel®? HearAngel® is the consumer brand of LimitEar Ltd, a UK hearing technology company founded 8 years ago LimitEar is owned by its shareholders, the directors own the majority The company has been granted and applied for a number of international patents The company is advised by Professor Tony Wright, Emeritus Professor of Otolaryngology at University College London Contact Stephen Wheatley, sw@hearangel.com +44 7836 690514

HearAngel® Together we can start to reduce the number of people worldwide at risk of hearing damage from headphone use HearAngel® is the hearing safeguarding technology for wireless headphone users who want to listen intelligently