system: You are a contract-analysis assistant performing a span-extraction task. You are given an excerpt from a commercial contract and the name of a clause type to locate within it.

Return the exact text of the requested clause, copied verbatim from the excerpt — identical wording and punctuation, with no paraphrasing, summarising, explanation, or added commentary.

The excerpt is one window of a much longer contract and often will not contain the requested clause. If the requested clause does not appear in this excerpt, respond with exactly: Not found.

Output only the extracted clause text, or the exact string `Not found.` — nothing else.

user: Contract excerpt:
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delivered to the intended recipient by prepaid post (or, if posted to an address in another country, by registered airmail or private air courier) or by hand or fax to the address or fax number below or the address or fax number last notified by the intended recipient to the sender: (i) to Dynamic Hearing: Chief Executive Officer 2 Chapel Street, Richmond, VIC 3121 AUSTRALIA Fax :+613 8420 8599 (ii) to IntriCon: President 1260 Red Fox Road Arden Hills, Minnesota 55112 United States Fax: +651 636 9503 (c) will be taken to be duly given or made: (i) in the case of delivery in person, when delivered; (ii) in the case of delivery by post, two Business Days after the date of posting (if posted to an address in the same country) or seven Business Days after the date of posting (if posted to an address in another country); and (iii) in the case of fax, on receipt by the sender of a transmission control report from the dispatching machine showing the relevant number of pages and the correct destination fax machine number or name of recipient and indicating that the transmission has been made without error, but if the result is that a Notice would be taken to be given on a day that is not a Business Day in the place to which the Notice is sent or is later than 4:00pm (local time) it will be taken to have been duly given or made at the commencement of business on the next Business Day in that place. 12.4 Any provision of this Agreement which is unenforceable or partly unenforceable is, where possible, to be severed to the extent necessary to make this Agreement enforceable, unless this would materially change the intended effect of this Agreement. 12.5 No failure to exercise or any delay in exercising any right, power or remedy by a party operates as a waiver. A single or partial exercise of any right, power or remedy does not preclude any other or further exercise of that or any other right, power or remedy. A waiver is not valid or binding on the party granting that waiver unless made in writing. 12.6 IntriCon may not assign or transfer any of its rights or obligations under this Agreement without the prior written consent of Dynamic Hearing. Likewise, Dynamic Hearing may not assign or transfer any of its rights or obligations under this Agreement without the prior written consent of IntriCon. 12.7 This Agreement may be executed in any number of counterparts. All counterparts together will be taken to constitute one instrument. 12.8 This Agreement is governed by the laws of Victoria, Australia and the parties submit to the jurisdiction of the courts of Victoria, Australia. The 1980 United Nations Convention on Contracts for the International Sale of Goods does not apply to this Agreement. 20 DYNAMIC HEARING PTY LTD INTRICON CORPORATION /s/ Elaine Saunders /s/ Mark S. Gorder Printed Name: Elaine Saunders Printed Name: Mark S. Gorder Title: CEO Title: President & CEO Dated: July 20, 2008 Dated: July 16, 2008 EXHIBIT A 21 Technology DSP FrameWorkTM means DSP software implementing program switching, volume control, reading and writing programs, program beeps, and battery monitoring. ADRO® Technology means the invention described in patent application PCT/AU99/00076 which is the subject of the following patents and patent applications: AU761865 EP11172020 US 6,731,767 CA 2,361,544 JP 2000-597976 and 32 channel ultra-low-delay ADRO ® amplification the subject of Patent application US11/283540. Note that Dynamic Hearing does not have rights to ADRO for electrical stimulation of the auditory system and that the rights to ADRO for electrical stimulation are thus explicitly excluded from this Agreement. Wide Dynamic Range Compression Technology means digital signal processing technology that provides level-dependent amplification of the input signal in multiple frequency bands. Adaptive Directional Microphone Technology means the technology that is the subject of Australian Patent Application 2004310722 entitled "Adaptive Directional Systems." Fixed Directional Microphone Technology means digital signal processing technology that implements a preferential fixed response to sound from a forward direction. 22 Omni-Directional Microphone Technology means digital signal processing technology that implements a fixed response to sound from all directions. The Adaptive Directional Microphone Technology, Fixed Directional Microphone Technology and Omni-Directional Microphone Technology are collectively known as the Microphone Technology. Single-channel Noise Reduction Technology means digital signal processing technology that reduces the output signal level by an amount related to the internal noise level in multiple frequency bands. Multi-channel Noise Reduction Technology means digital signal processing
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Extract the exact clause related to "Anti-Assignment" from the excerpt above.

assistant: Likewise, Dynamic Hearing may not assign or transfer any of its rights or obligations under this Agreement without the prior written consent of IntriCon.