KZ Castor iem Harman Target Version With Imporved Bass Version IEM In-Ear Earphones – Dual Dynamic Drivers (10mm + 8mm), Tunable Sound with 4 Adjustment Switches (16 Profiles), Noise Isolating, 3.5mm, 0.75mm 2-Pin, Gray With Mic - Bass Version

The KZ Castor Harman Target with Improved Bass Version is a tunable in-ear monitor designed for listeners who prefer stronger low-frequency response while retaining mids and highs aligned with the Harman-inspired tuning target. This selected black version includes an inline microphone for calls, voice chat and gaming communication.

Each earpiece uses two stacked dynamic drivers: a 10mm dual-magnetic dynamic driver and an 8mm dynamic driver. One driver focuses on low-frequency reproduction, while the other handles the mid and high frequencies through an electronic crossover structure. This arrangement delivers deeper bass while maintaining vocal and instrumental detail.

Four physical tuning switches provide two-stage adjustment for low frequencies and two-stage adjustment for mid and high frequencies, creating up to 16 switch combinations. The sound can therefore be adjusted for music, movies, gaming or individual listening preferences.

Key Features:

• Harman Target with Improved Bass tuning

• Black version with inline microphone

• Stacked dual-dynamic-driver configuration

• 10mm dual-magnetic dynamic driver

• 8mm dynamic driver

• Electronic crossover design

• Four physical tuning switches

• Up to 16 sound-profile combinations

• Adjustable low, mid and high-frequency response

• Passive in-ear noise isolation

• Detachable 0.75mm 2-pin cable

• Silver-plated cable with 3.5mm audio plug

• Ergonomic in-ear wearing design

• Suitable for music, gaming, movies and voice communication

Technical Specifications:

• Frequency response: 20Hz–40kHz

• Impedance: 16–20 ohms

• Sensitivity: 103±3dB

• Plug type: 3.5mm

• Connector: 0.75mm 2-pin

• Cable length: 120±5cm

• Cable type: Flat transparent-black silver-plated cable

• Microphone: Yes

Compatibility:

• Smartphones and tablets with a 3.5mm audio jack

• Desktop computers and laptops with a compatible 3.5mm headset port

• PlayStation and Xbox controllers with a compatible 3.5mm headset jack

• Nintendo Switch and other handheld gaming devices with a 3.5mm output

• DACs, audio players and amplifiers with a standard 3.5mm headphone output

• USB-C and Lightning devices when used with a compatible audio adapter that supports microphone input

Important Note:

This is the black Harman Target with Improved Bass Version, not the white standard Harman Target Version. The shell may appear dark gray under some lighting, but KZ officially designates this variant as black.

The four switches provide up to 16 possible combinations; audible differences depend on the selected setting, source, recording, ear-tip seal and listener. Set the switches on both earpieces to matching positions for balanced sound. Use the supplied tuning tool carefully and avoid using sharp objects.

Noise isolation is passive and depends on selecting the correct ear-tip size; the earphones do not include active noise cancellation. This is a wired 3.5mm model and does not contain Bluetooth, a battery or a built-in digital audio decoder. USB-C and Lightning adapters are sold separately and must support both audio output and microphone input.

• The standard package includes the earphones, detachable silver-plated microphone cable, silicone ear tips, tuning tool, instruction booklet and packaging. Phone, computer, audio adapter, replacement cable and other accessories are not included.