📄 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.
Need Help? Contact boAt Support
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Note: This guide is based on official boAt support documentation. For the most up-to-date information, visit boAt Support