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Monster Open Ear AC312

Monster Open Ear AC312

Regular price €44.95 EUR
Regular price Sale price €44.95 EUR
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Introducing the Monster Open Ear AC312 - where cutting-edge technology meets exceptional design for an unparalleled audio experience. Dive into the details to discover everything about these incredible wireless earphones.


1. Crystal Clear Calls: Adopting ENC true dual-mic intelligent call noise reduction algorithm technology ensures clear calls by suppressing ambient noise and call echo.

2. Extended Battery Life: Enjoy an extra-long battery life with over 9 hours of usage on a single charge and up to 31 hours with the charging case.

3. Comfortable All-Day Wear: Ergonomically designed flexible ear hooks with a skin-friendly silicone outer layer provide a comfortable fit. The fine memory titanium wire prevents slipping, making them ideal for all-day wear.

4. Directional Sound Field Conduction: Experience a three-dimensional sound quality with new directional sound field conduction technology that inhibits sound leakage and ensures comfortable sound transmission.

5. Powerful Sound Output: Featuring a φ15.4mm large driver unit and a new plant composite process diaphragm, these earphones deliver abundant bass and stable mid-high frequency output for a distortion-free listening experience.

Technical Specifications:

Brand Name: Monster

Model: Open Ear AC312

Style: Ear Hook

Vocalism Principle: Dynamic

Active Noise-Cancellation: Yes

Material: Metal, ABS

Control Button: Yes

Communication: Wireless

Volume Control: Yes

Impedance Range: Up to 32 Ω

Sound Isolating: YES

Waterproof: Yes

Frequency Response Range: 20 - 20000Hz

Voice Assistant Built-in: YES

Wireless Type: Bluetooth

Driver Diameter: 15.4mm

Resistance: 32Ω

Sensitivity: 108dB

Earcups Type: Sealed

Battery Life: Up to 31 hours

Charging Method: Charging case

Maximum Wireless Range: 10m-20m

With Microphone: Yes

Bluetooth Version: 5.4 (ENC dual-mic noise cancellation)

Speaker Specification: Φ15.4mm

Audio Decoding: AAC, SBC

Playback Time: About 9 hours (50% volume)

Talking Time: About 8 hours (50% volume)

Earphones Battery:  60mAh

Battery Capacity: 400mAh

Charging Time: About 1 hour for the Earphones, about 2 hours for the charging case

Charging Times: Charging case can charge the headset about 2.5 times

Charging Port: Type-C (5V/0.5A)

Waterproof Level: Headset IPX5, charging case is not waterproof

Package Contains:

1 x Pair of Open Ear AC312 Earphones

1 x Charging Case

1 x Charging Case

1 x User Manual

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