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By certification 
2.4Ghz international free license.
Complete digital transmission,anti-interference
8- 95 optional independent channels
5 hours charging for 12-15hours last work.
High-tech Rechargeable Lithium battery with large capacity.
150meters transmission distance at outdoor area
Available for simultaneous interpretation
Complete digital transmission,anti-interference
8- 95 optional independent channels
5 hours charging for 12-15hours last work.
High-tech Rechargeable Lithium battery with large capacity.
150meters transmission distance at outdoor area
Available for simultaneous interpretation
