Product parameters:_x005F_x000D_Product Name: 2-in-1 Bluetooth Receiver and Transmitter_x005F_x000D_Product color: white_x005F_x000D_Product material: ABS_x005F_x000D_Product size: 70*30*15mm_x005F_x000D_Bluetooth solution: 5.0 EDR, A2DP, HSP, AVRCP_x005F_x000D_Operating frequency: 2.4GHz-2.48GHz_x005F_x000D_Bluetooth transmission distance 10 meters_x005F_x000D_Bluetooth receiving distance 10 meters_x005F_x000D_Charging voltage: DC 5V_x005F_x000D_Battery capacity: 250mAh polymer lithium battery_x005F_x000D_Working time: about 6 hours_x005F_x000D_Bluetooth receiving function: connect 1 mobile phone_x005F_x000D_Bluetooth transmitter function: connect 1 pair of bluetooth earphones_x005F_x000D_Screen display: can display 8 device names to be paired transmit can display the paired mobile phone name receive_x005F_x000D_Playback support: support TF memory card music playback, support card reader function_x005F_x000D_Packing size: 15.2*7*2cm_x005F_x000D_ packing list:_x005F_x000D_1Host_x005F_x000D_1USB charging cable_x005F_x000D_13.5mm audio cable_x005F_x000D_1Chinese and English manual_x005F_x000D_ Notice:_x005F_x000D_Manual measurement please allow 1-2cm size error_x005F_x000D_