boAt Rockerz 551 ANC Pro – Complete Support Guide with Specifications & FAQs

📄 Original Source: boAt Official Support – Rockerz 551 ANC Pro

boAt Rockerz 551 ANC Pro

Over-Ear Headphones with 42dB Hybrid Adaptive ANC & 72 Hrs Playtime

Designed for Audiophiles and Multitaskers

This headset brings you a 42dB Hybrid Adaptive ANC, ensuring every beat is pure and uninterrupted, with an impressive 72 hours playtime, 40mm drivers with boAt Signature Sound, and dual mics with ENx™ Tech:

40mm Dynamic Drivers – boAt Signature Sound
42dB Hybrid Adaptive ANC – Ambient, ANC ON, Normal, plus Adaptive ANC
72 Hours Playtime – At ~60% volume
Dual Mics with ENx™ Tech – Clearer calls
BEAST™ Mode – Low latency for entertainment
ASAP™ Charge – 10 min charge = 90 min playtime
Bluetooth 5.4 – Stable 10m connection

Key Features at a Glance

🔇 42dB Adaptive ANC

Ambient, ANC ON, Normal, and Adaptive ANC modes

⏱️ 72 Hours Playtime

At approximately 60% volume

⚡ ASAP™ Charge

10 min charge = 90 min playtime

🎮 BEAST™ Mode

Low latency mode for gaming & video

Full Specifications

Specification	Details
Type	Hybrid ANC Over-Ear Headphones
Bluetooth Version	V5.4
Active Noise Cancellation	Yes; 42dB Hybrid Adaptive ANC
Driver Size	40mm x 2
HD Sound	Yes
Music Playtime	Up to 72 Hours (at ~60% volume)
SNR (Signal-to-Noise Ratio)	70dB
Battery Capacity	500mAh
Frequency Response	20Hz – 20kHz
Charging Time	1.5 Hours
Charging Port	USB Type-C
Transmission Range	10 Meters
BEAST™ Mode	Yes
ENx™ Technology	Yes
ASAP™ Charge	Yes; 10 mins charge = 90 mins playtime
cVc Technology	No

Technology & Features

42dB Hybrid Adaptive ANC

Short press the ANC button to cycle: Ambient Mode → ANC ON → Normal Mode (ANC off). Press the ANC button twice to activate Adaptive ANC, then wait 3 seconds while the headphones assess your surroundings and cancel external noise (Adaptive ANC works only while in ANC mode).

BEAST™ Mode (Low Latency)

Double press the MFB to activate BEAST Mode for low latency. Double press again to return to normal music mode – suitable for casual gaming and entertainment, though not intended for professional gaming equipment needs.

Dual Mics with ENx™ Technology

Environmental noise reduction technology across dual mics helps deliver clearer calls by minimizing background noise pickup.

ASAP™ Charge Technology

boAt’s patented fast-charging technology can deliver up to 90 minutes of playback from just 10 minutes of charging (may vary by conditions). Follow the charging norms in your user manual for best results.

Multifunction Button (MFB) & ANC Controls

Action	Function
Press & hold MFB (2 sec)	Power ON (voice tone confirms)
Press & hold MFB (4 sec)	Power OFF
Long press Vol.+ and Vol.- together (4 sec)	Factory Reset / Clear paired devices
Short press MFB once	Play/Pause, Answer call, End call
Double press MFB (during call ring)	Reject call
Double press MFB (idle)	Toggle BEAST™ Mode
Triple press MFB	Activate Voice Assistant
Press & hold Volume + (1 sec)	Next Track
Press & hold Volume – (1 sec)	Previous Track
Short press Volume +/-	Adjust Volume
Short press ANC button	Cycle: Ambient → ANC ON → Normal Mode
Press ANC button twice	Activate Adaptive ANC (in ANC mode)

Pairing & Connectivity

Initial Pairing

When switched off, press & hold the MFB for 3 seconds to power on and enter pairing mode
The white and red LEDs flash alternately to indicate pairing mode
Open Bluetooth settings on your device and search for ‘Rockerz 551 ANC PRO’
Select the device from the list; enter passcode 0000 or 1234 if prompted
Once connected, the white LED flashes slowly to confirm the connection

Charging & Battery

How to Charge

Plug the USB Type-C cable into the headphones and connect the other end to a computer or wall adapter
Use a 5V/2A wall adapter for correct voltage
Full charge takes approximately 1.5 hours
Red LED turns completely white once charging is complete

Troubleshooting Guide

Bluetooth Connectivity Issues

Headphones not connecting via Bluetooth

Ensure Bluetooth is ON and check for alternating red/white LED flashes indicating pairing mode
Confirm the device is within 10m range with no obstructions
If prompted for a passcode, enter 0000
If the issue persists, unpair from Bluetooth first, then try a factory reset
If any earbud’s LED doesn’t blink, manually power it on before resetting

One side not working or disconnecting frequently

Clear “Rockerz 551 ANC Pro” from your device’s pairing history first
Long press Volume + and Volume – buttons simultaneously for 4 seconds to clear the paired device history
Attempt a fresh connection; if the issue persists, manually power off and then power on

Charging Issues

Headphones not charging

Test the charging cable on another device, or try a different cable
Use only 5V/2A chargers – incorrect voltage can damage the device
Charge until the red light turns completely white
Check the battery hasn’t been tampered with or exposed to electrical damage
Clean the charging port with a cotton swab if clogged with dirt
Confirm the adapter and cable support fast charging

Sound Issues

Sound is distorted, low volume, low bass, or muffled

Set your phone’s equalizer to normal/default/none/0 (see phone-specific EQ paths below)
Perform a factory reset
Clean the headphones if clogged with ear wax or debris

Volume changes automatically

Check equalizer settings on the connected device
Test with a different media player or device to isolate the issue

Power & Control Issues

Headphones won’t power on

Use only 5V/2A chargers for the correct voltage
Check for mishandling, broken wires, exposure to direct sunlight, or other hazards

Built-in controls not working

Unpair/Forget the device and pair again
Test controls when connected to a different device
Verify the media player supports Bluetooth controls
Check for physical damage or exposure to hazards

Voice assistant doesn’t wake up

Check that Google Assistant or Siri is enabled on your paired device
Triple-press the MFB; this may be restricted by default on some devices

Microphone Issues

Voice is muffled during calls / microphone not working

Restart the headphones
Perform a factory reset
Ensure no objects obstruct the connection; move closer to your device
Check the microphone hole for dirt or earwax and clean gently

Phone-Specific EQ Settings

Phone Brand	EQ Path
Vivo	i Music > Audio effect > Deep space sound effects > Equalizer
Xiaomi	Settings > Sound & vibration > Sound effects > Graphic equalizer
Samsung	Settings > Sound quality and effects > Equalizer
Realme	Settings > Sound > Equalizer (varies by UI version)
Oppo	Settings > Sound & vibration > Equalizer
Apple	Settings > Music > EQ
Motorola	Settings > Sound > Audio effects
Poco	Settings > Sound & Vibration > Graphic Equalizer
OnePlus	Settings > Sound Quality & Effects > Audio Tuner

Frequently Asked Questions

How long is the battery life?

Rockerz 551 ANC Pro offers up to 72 hours of playtime at approximately 60% volume. Full charging takes about 1.5 hours.

Does it support low latency for gaming?

Rockerz 551 ANC Pro includes BEAST™ Mode for low latency, activated by double-pressing the MFB. It’s suitable for casual gaming and entertainment, but not professional gaming equipment needs.

Does it have Active Noise Cancellation (ANC)?

Yes, Rockerz 551 ANC Pro features 42dB Hybrid Adaptive ANC, cycling through Ambient, ANC ON, and Normal modes, plus an Adaptive ANC mode that assesses your surroundings automatically.

Does it support the voice assistant feature?

Yes, Rockerz 551 ANC Pro supports Voice Assistant – triple-press the MFB to activate Google Assistant or Siri.

Does it have cVc technology?

No, Rockerz 551 ANC Pro does not have Clear Voice Capture (cVc) technology, which is used for noise cancelling and enhancing selective listening on other models.

What is ASAP™ Charge?

boAt’s patented fast-charging technology that lets your device charge at an incredible speed, where 10 minutes of charging can give up to 90 minutes of playback time (may vary by conditions).

Does it have an AI-ENx™ enabled microphone?

Yes, Rockerz 551 ANC Pro has ENx Tech built into the mic to ensure crystal-clear calls even in noisy surroundings.

What is the Bluetooth range?

Rockerz 551 ANC Pro has a maximum Bluetooth transmission range of 10 meters under normal conditions with no obstructions.