Factory direct sales, quality assurance1.8 years factory experience2.can make customer design3.The high quality4.Suitable for business gifts, promotional gifts

Specifications Driver unit: 10mm Mylar speakerImpedance: 32ohms;Frequency response: 20Hz to 20kHz Sensitivity: 105dB (at 1kHz) Input power: 50mW (maximum)Plug type: 3.5mm stereo Cord length: 1.0mTransducer:9U