You can refer to the following formats:
letter of attorney
Client: xxx, born on X, X, ID number: xxxxxxxXXX, Han nationality, living in Building X, XXXXXXXX District, XXX City, and telephone number: XXXXXXXXXXXXXX.
Trustee: xxx, position: lawyer of xxx Law Firm, telephone xxxxxxx.
I hereby entrust xxx as the agent ad litem in the case of dispute between me and XXX (case number:), and the agency authority is special, that is, to admit, waive and change the claim on behalf of XXX, and to mediate, reconcile and collect legal documents on behalf of XXX.
Agency period: from the date of signing this power of attorney to the end of the trial of this case.
Customer:
Xxxx year x month x day
The customer signs and prints, takes photos or copies for record.