No.70257Jun.2001TF-HF40(J)/TF-HF40-NK(J)SERVICE MANUALHANDS FREE KIT FOR MOBILE PHONESCOPYRIGHT C 2001 VICTOR COMPANY OF JAPAN. LTDTypeNominal impedanceSensitivityMax.input capabilityCord lengthMassMoving coil32 ohms98 dB/1 mW30 mW1.2 m (3.94 ft) with 2.5mm triple-pole plug19g (0.67 oz) without cord30g (1.06 oz) with cordSpecificationsDesign and specifications subject to change without notice.Earphone sectionTypeDirectivitySensitivityAccessoryElectrical condenserNon-directional-60 dB(0dB=1V/0.5Pa)Plug adaptor for Nokia(for NK model only)Microphone sectionTF-HF40(J) TF-HF40-NK(J)TF-HF40(J)/TF-HF40-NK(J)The "Product Exchange System" is applicable to this product.For limited spare parts, refer to the parts list.