EXHIBIT 10.16

December 24, 2008

Werner Heid

Dear Werner:

On behalf of Logitech Inc. ("Logitech"),
and subject to the ratification of the Board of Directors of Logitech
International S.A. ("Logitech International"), we are pleased to offer you the
position of Sr. Vice President, WW Sales and Marketing, reporting to Jerry
Quindlen, President and CEO.

Your bi-weekly base salary will be
$21,153.84, payable every two weeks (annualized this amount is $550,000). You
will also be eligible to participate in Logitech International's Management
Performance Bonus Plan, targeted at 75% of your base salary for a potential
annual total compensation of $962,500.

Logitech will guarantee 100% of your bonus
target, on a prorated basis for the first fiscal quarter of your employment,
which coincides with the end of the Logitech's fiscal year and the second half
of our annual bonus plan. Beginning in April 2009, you will participate in and
be measured against the terms as written in the Director / Vice President bonus
plan.

We will recommend that the Compensation
Committee of Logitech International's Board of Directors approve a grant to you
of 150,000 stock options on Logitech International shares at your time of hire.
We will recommend
another 50,000 stock options at the stock grant cycle, currently scheduled for
spring 2009. These options will vest over a 4-year period, with 25% vesting on
the grant date anniversary each year. The receipt of any grant shall be
conditioned upon the subsequent execution by you of a Logitech stock option
grant agreement. Any future grant of employee equity incentives to you will be
reviewed pursuant to the same general process employed for all executives of
comparable status.

Logitech will pay relocation costs and
provide reimbursement for specified moving expenses as outlined in Logitech's
executive relocation policy. In order to receive these benefits, you will be
required to work with a third party vendor provider designated by Logitech to
assist in employee moves.

Logitech offers medical, dental and vision
plans (effective on your date of hire), company-paid life insurance, voluntary
life insurance, a Section 125 flexible spending plan, a 401(k) retirement
savings plan, short term disability, long-term disability, share purchase plan,
as well as 20 days per year of combined accrued vacation and sick leave and 11
paid holidays. For additional information on Logitech's comprehensive benefits
programs, please log on to our benefits website using instructions that will be
provided to you.

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Werner Heid December 24, 2008Page
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In addition, we will recommend that the
Compensation Committee of Logitech International's Board of Directors approve
the entry into with you of a Change of Control Severance Agreement, in the form
substantially as entered into with other Logitech non-CEO executive officers.

For your information, Logitech's
performance reviews are conducted at the same time each year for all employees.
It is also important for you to know that all of our compensation plans and
programs are reviewed each year and may be subject to change. Logitech reserves
the right to cancel or change the benefit plans and programs it offers to its
employees, including its executive officers, at any time. Any adjustment to your
base salary or your target incentive bonus and other compensation shall be in
the sole discretion of the Logitech International Board of Directors or the
Compensation Committee of the Board.

Federal regulations require us to verify
your legal eligibility to work in the United States. Enclosed is the employment
eligibility verification form, which lists the acceptable types of
identification. Please bring one type from "List A", or one each from "List B"
and "List C" with you on your first day.

While it is our sincere hope and belief
that our working relationship will be mutually beneficial, we also want to
advise you that Logitech is an at-will employer. Consequently, either Logitech
or you can terminate the employment relationship at-will, at any time, with or
without cause, and with or without advance notice. However it is understood that
if a separation from service (as defined in the regulations under Section 409A
of the Internal Revenue Code of 1986, as amended (the "Code") because your
employment is terminated by Logitech without cause, and not as a result of your
death or disability (meaning that you are unable to perform your duties for any
90 days in any one-year period as a result of a physical and/or mental
impairment). and if you sign a general release of known and unknown claims in
form satisfactory to Logitech, you will receive severance payments equal to nine
months of your current base salary plus seventy-five percent (75%) of your
current annual targeted bonus amount, less applicable withholdings. Severance
payments representing base salary will be made periodically in accordance with
Logitech's normal payroll schedule, and the severance payment representing
seventy-five percent (75%) of your annual targeted bonus amount will be made in
one lump sum at the end of the nine-month severance period, less applicable
withholding. Logitech will deliver the form of release to you within 30 days
after your separation from service. You must execute and return the release
within the period set forth in the prescribed form. The salary continuation
payments will commence within 30 days after you return the release.

For purposes of Section 409A of the Code,
each salary continuation payment under the paragraph immediately above is hereby
designated as a separate payment. If Logitech determines that you are a
"specified employee" under Section 409A(a)(2)(B)(i) of the Code at the time of
your separation from service, then (i) the salary continuation payments under
the paragraph immediately above, to the extent that they are subject to Section
409A of the Code, will commence during the seventh month after your separation
from service and (ii) the installments that otherwise would have been paid
during the first six months after your separation from service will be paid in a
lump sum when the salary continuation payments commence.

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Werner Heid December 24, 2008 Page 3

For purposes of this offer letter, a
separation from service "for cause" occurs if you are terminated for any of the
following reasons: (i) theft, dishonesty, misconduct or falsification of any
employment or Logitech records; (ii) improper disclosure of Logitech's
confidential or proprietary information; (iii) any action by you which has a
material detrimental effect on Logitech's reputation or business; (iv) your
failure or inability to perform any assigned duties after written notice from
Logitech to you of, and a reasonable opportunity to cure, such failure or
inability; (v) your conviction (including any plea of guilty or no contest) of a
felony, or of any other criminal act if that act impairs your ability to perform
your duties under this Agreement or (vi) your failure to cooperate in good faith
with a governmental or internal investigation of Logitech or its directors,
officers or employees, if Logitech has requested your cooperation. For purposes
of this paragraph only, "Logitech" shall mean Logitech International and its
direct and indirect subsidiaries.

In the event a Change of Control Severance
Agreement is entered into with you, the aggregate amount of any amounts payable
to you under this offer letter in the event of a separation from service will be
reduced, but only to the extent necessary so as to prevent the duplication of
severance payments to you.

Enclosed with this letter is Logitech's
New Hire Orientation Packet. We request that you bring the completed paperwork
to Orientation on your first day. Also, please be aware that your acceptance of
employment with Logitech requires your signature on our "Employee Agreement
Regarding Proprietary Information and Inventions," a copy of which is enclosed.

This offer is valid through the end of the
business day Tuesday December 30, 2008 and conditional upon a start date of
Thursday, January 22, 2009.

Werner, we feel that the single most
important factor of our success is our people and we look forward to having you
on the Logitech team. If you have any questions, or need clarification on any
information contained in this letter, please do not hesitate to contact us.
Please sign and return both pages of the offer letter to John Zwieg.

Yours sincerely,

/s/ Martha Tuma

Martha D. TumaVP Worldwide Human Resources

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I accept the position of Sr. Vice
President, WW Sales and Marketing, and will begin work Thursday, January 22,
2009. I further acknowledge that the terms and conditions specified in this
letter are the only commitments Logitech is making relative to my employment and
that all other promises, either verbal or written, are null and void.

|/s/ Werner
      Heid | Date: 
      December 30,
      2008
|--------------------- | ------------------------------------
|Werner
      Heid     |                                     

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