7. Valuation of Marketable Securities	6 Months Ended
Jun. 30, 2013
Notes to Financial Statements
Valuation of Marketable Securities	In October 2010 Zoom Telephonics, Inc. entered into an agreement with Zoom Technologies, Inc. (Nasdaq: ZOOM) in which Zoom Telephonics transferred its rights to the zoom.com domain name and certain trademark rights in exchange for 80,000 shares of Zoom Technologies common stock. These shares had trading restrictions that ended January 18, 2012. The Company values the marketable securities at market value in the financial statements. The Company did not sell any Zoom Technologies shares in 2012 or the first and second quarter of 2013. The closing price of Zoom Technologies common stock decreased from $0.55 on December 31, 2012 to $0.41 on June 30, 2013.

Disclosure of accounting policy for not readily marketable securities, valuation methods and significant assumptions used to determine fair value, restrictions on the investment and reasons investments are not readily marketable, including securities that are not registered, investments in nonpublic entities.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 940

-SubTopic 820

-URI http://asc.fasb.org/subtopic&trid=2176471

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