Professional 16-units pure balanced armature acoustic earphones, impedance: 15Ω, sensitivity 105db, frequency : 20-40000HZ, light weight 33g, high performance aluminium
Professional 20-units pure balanced armature acoustic earphones, impedance: 20Ω, sensitivity 106db, frequency : 10-40000HZ, light weight 27g, high performance aluminium
Professional 3-units pure balanced armature acoustic earphones, impedance: 25Ω, sensitivity 112db, frequency : 20-40000HZ, light weight30g, high performance zinc alloy
Professional 10-units pure balanced armature acoustic earphones, impedance: 30Ω, sensitivity 111db, frequency : 7-40000HZ, light weight 32g, high performance aluminium
Professional 2-units pure balanced armature acoustic earphones, impedance: 25Ω, sensitivity 112db, frequency : 7-40000HZ, light weight 27g, high performance black