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OpenBox Sennheiser HD 450BT (ANC) Bluetooth headphones
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OpenBox Sennheiser HD 450BT (ANC) Bluetooth headphones

8,999 ₹ 16,990

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Product Description

Offers 30 hours of playback with Active Noise Cancellation (ANC) enabled.
Features Bluetooth 5.0 with support for aptX, aptX Low Latency, AAC, and SBC codecs.
Equipped with a MEMS microphone and dual beamforming array for clear voice capture.
Includes a USB-C fast charging port, achieving full charge in approximately 2 hours.

🎧 Key Features & Overview

SpecDetail
Driver / Transducer32 mm dynamic drivers (closed‑back) 
Frequency Response (Audio)~ 18 Hz to 22,000 Hz (‑10 dB) 
Sound Pressure Level (Sensitivity)108 dB (1 kHz / 0 dBFS) 
THD (Total Harmonic Distortion)< 0.3% (1 kHz, 100 dB SPL) 
MicrophoneMEMS mics with dual‑beamforming arrays; mic frequency response ~ 80 Hz to 6000 Hz (‑3 dB) 
Battery & Charging~30 hours playback with Bluetooth + ANC active; ≈ 2 hours charging via USB‑C (5 V, 500 mA) 
Weight~238 grams 
Build & Other detailsComes with audio cable (3.5 mm / 2.5 mm), USB‑C cable, carry case; controls via buttons; features voice assistant button; foldable design. 

 

👍 Pros 
Good battery life (30 hrs with ANC) — practical for travel / long use.  
Codec support (aptX LL etc.) helps in reducing lag, more usable for video / streaming.  
App support with EQ & Podcast mode adds flexibility.  
Price is relatively reasonable for what you get; solid value in mid‑range ANC segment. 

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