Audio Universal Ambient Clear []Westone AM-PRO-X20 [2BA] WA-AM-PRO-X20

2 DRIVERS WITH PASSIVE CROSSOVER: The AM PRO Equipped with a driver. Delivers Robust Bass and Clear Treble: Dual balanced armature driver design delivers robust bass and clear treble with the detail and nuance that professional musicians expect from in-ear monitors. Ideal in-ear monitor: AM PRO X20 is ideal for musicians and music lovers looking for powerful bass.