Headphones Presentation

8/12/2019 Headphones Presentation

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Wireless Headphones

The Art and Science of Engineering Design

Kaitlin Halady

Shilpa Sarkar

Carolina Jaramillo Romn


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What is the problem?

Todays headphones arent giving users

a 100% enjoyable, perfect music

experience

Wireless headphones are too expensive

for the average college student


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What will solve the problem?

Reasonably priced

High quality

Comfortable

Give consumer unrestricted

range of motionWater-resistant


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Why wireless?

Problems with wire

Knots and tangles

Limits range of motion

Potential safety hazard

Constant re-adjustment

Reasoning

Direction of market

Competitors

Latest products


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The Survey: General Info

100% use

headphones

89 students at Stanford University


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The Survey: Brands

* Other brands: Panasonic, Sennheiser, Audio Technica, Samsung, Creative, Grado,Beyerdynamic, Etymotic, Koss, Uknown, Skull candy, V-moda, JVC-Gummy)

50%

17%

6%

4%

3%

20%

Apple

Sony

Bose

Philips

Sure

*Other brands


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The Survey: Type of Headphone

Types of Wired Headphones

0 20 40 60 80

Non-earbudsEarbuds

Did not say

7%

7%86%86%

Wireless

Did not respondWired


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The Survey: Headphone UsageWork out

Listen to music

Study/read

Biking

Transport(on plane,walk)

Sleeping

Watch movie

Other


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The Survey: Hours of use per day


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Survey: Important Factors

Most

Important

Important Less

Important

Least

Important

Price 33.7 % 25.8 % 27 % 13.5 %

Comfort 40.4 % 28.1 % 25.8 % 5.6 %

Style 5.6 % 7.9% 24.7 % 61.8%

Sound

quality

20.2 % 38.2% 22.5 % 19.1 %


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The Survey: Have your headphones everfelt uncomfortable?

Are headphones...

24%

76%

Comfortable

Uncomfortable

0

10

20

30

40

50

60

70

80

%

Shape

Fall out/ Headache

Wire


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If a pair of $60 to $80 wireless ear buds was onthe market, would you purchase them?

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

No

Yes


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Objective Tree

Objective Tree

Shape Wireless

Comfort

Compatibilitywith M ac Durable Water Resistant

Versatility

Container

Portable

Colors

Style

$60 - $80(mid-range)

Price

Marketability

Wireless Headphones


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Detailed Design

Inner-ear bud

Adjustable over-ear piece

User InterfaceCharger/Adapter

Materials

ColorsRetail

Scheduling


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The Headphones

Left headphone:

100 mAh battery, four hours playing time

Charging plug

Lights to signal power and bluetooth signal

Right headphone:

Circuit board

Bluetooth chip/antenna

Controls for the two wheels (track and volumechanging/power)

Switches, capacitors, resisters, and other technicalcomponents that make headphones possible


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Canalphones

Directly into the ear canal Natural seal

Traditional type Sleeves

foam

QuickTime and a

TIFF (Uncompressed) decompressorare needed to see this picture.


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Adjustable Behind-ear piece

Rigid backbone

Adjust vertically to fit different size ears

Rotate up to a 90 degree angle from earbud for

maximum comfort


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User Interface

Wheels (Right)

Volume


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Materials

Plastic

Paint

Foam

Plastidip

Soft elastomer


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Colors

Pink

Blue

Black

White


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Technical Components


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The Charger

Portable

1000 mAh battery ( ~ 15 hours hours of playback time)

Plug to charge headphones in case

USB port on the outside with a wire that plugs in to anelectrical outlet

When plugged into a wall it is a standard charger

When unplugged it is a compact carrying case that cansupply power to the headphones


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The Adapter

Takes the analog signalfrom the iPod and convertsit to digital so it can be sentwirelessly to the users

headphones

Plugs into the iPod

Bluetooth chip in a circuitboard

Runs off of the iPodbattery.


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Morph ChartMeans 1 2 3 4

Feature/function

Transmit music wirelessly Bluetooth RF transmitter (FM) Infrared transmitter

(WiFi)

Compatibility One brand of mp3

player

Multiple brands

Shape Earbuds Earbuds with over-ear

piece

Canalphones (in-

ear)

Supra-aural

headphones

Material of headphone Silicone rubber Elastomate Foam

Water resistance material Plastidip Polypropylene Mylar

Power for headphones Charger (plugs

into outlet)

Container with charger Docking Station

User interface Buttons onheadphones

Be controlled by mp3player

Mix: some buttonson headphones,

others mp3

Battery Goes in both

headphones

Goes in one

headphone

Storage Carrying case Charging carrying

case

Magnetized


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Alternative Designs

Connecting Wire

Aural Headphones vs. Earbud

Compatibility

User Interface Placement/Type

Over-the-ear Piece


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Budget

(Headphones + Adaptor + Charger)= $17.50

17.50 x 3.5 = ~ $61.25

17.50 x 4 = ~ $70.00

Retail price somewhere between $60 and $70


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Piece Estimated Cost (Dollars)

Headphone

Battery (100 mAh) ~ .50

Bluetooth (includes digital-to-analog converter) 4.00

Material (Foam, Plastic, TPE) 1.00

Packaging .75

Chip to charge battery 1.00

Other components (switches, LEDs, resisters,

capacitors, etc.)

1.75

Plasti-Dip ~ . 50Charger-case

Plastics 1.00

AC power adapter 1.50

Adapter

Plastic Casing .50

Bluetooth 4.00

Circuit Board/Electronics 1.00

TOTAL 17.50


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Retail

X 4, X 3.5

SellingShipping

Middlemen

Store

Online


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Scheduling

(for hypothetical release of product)

0 wks - Design start

+ 4 wks - Industrial Design

+ 4 wks - Mechanical Design

+ 6 wks - Tooling design and fabrication

Less than 12 wks for electrical design, so this is notcritical path to this point.

= 14 weeks, 1st milestone - First prototype + 8 weeks to get from first to final prototypes

+ 4 weeks to get FCC certification

= 26 weeks, then mass production would start


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The Competition: Jaybird JB-100

Released Fall 2007

Online Market

$180.00 (with adapter)

Cons

High Price

No User Interface

Wire between headphones

Volume too low/No bass

Only available online

Doesnt fit all ear sizes

Pros

In-ear Bluetooth headset

Noise cancelingWater/sweat resistant

Comes with charging dockand mesh case


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The Competition: Sennheiser MXW1

Release May 2008

In Store Market

$599.00

Pros

Twist and Fit System

Kleer Technology

Higher Battery LifeReceived Editors Choice Award

in 2008 at Consumer ElectronicTradeshow

Cons

High Price

New technology

No current customer reviews


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What will the future bring?

Market movement to wireless

Evolving design

Compatibility

New technology (Kleer)

Cheaper costs for technical components

Documents

Headphones Presentation