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China YingMi Audio Guide System Lithium Battery Powered Optimized GPSK Modulation for sale
YingMi Audio Guide System Lithium Battery Powered Optimized GPSK Modulation Anhui YingMi Smart. CO., LTD.                                                                                                            
Price: negotiation · MOQ: 1pcs · Delivery Time: 3-7 days Name Value Working frequency: 860MHz-870MHz; Other frequency can be customize Channel quantity: 100CH; Modulation mode: GPSK; Working distance: >200m; Battery c ·