boAt Rockerz 551 ANC
Complete FAQ & Troubleshooting Guide
Hybrid ANC (35dB) | 100-Hour Playback | 40mm Drivers | Over-Ear Headphones
Information compiled and verified from the official boAt Rockerz 551 ANC support page.
100 Hrs
Music & Talk Time
About the Rockerz 551 ANC
The boAt Rockerz 551 ANC is an over-ear headphone with Hybrid Active Noise Cancellation (up to 35dB), a massive 100-hour battery life, and 40mm drivers for concert-like sound. Below is a comprehensive, source-verified FAQ and troubleshooting guide covering connectivity, charging, sound, microphone, and general usage questions.
Technical Specifications
| Specification | Details |
| Headphone Type | ANC Over-Ear Headphones |
| Bluetooth Version | v5.0 |
| Transmission Range | 10 meters |
| Driver Size | 40mm x 2 |
| Frequency Response | 20Hz – 20kHz |
| Music Playtime | Up to 100 hours per charge |
| Talk Time | Up to 100 hours per charge |
| Charging Time | 1.5 hours |
| Active Noise Cancellation | Hybrid ANC, up to 35dB |
| Ambient Mode | Yes |
| Water Resistance | Not rated (NA) |
| aptX Codec | Yes (requires media device support) |
| CVC Technology | Yes (noise cancelling for calls) |
| ASAP Charge | Yes — 10 mins charge = 90 mins playback |
Troubleshooting Guide
Connectivity Issues
Q: How do I pair the Rockerz 551 ANC with a new device?
1. When switched off, press & hold the MFB for 4 seconds to power on and enter pairing mode (blue and red LEDs flash alternately)
2. Open Bluetooth settings and search for “Rockerz 551ANC”
3. Select it and enter passcode ‘0000’ or ‘1234’ if prompted
4. Once connected, the blue LED flashes once every 5 seconds
Note: The headphone auto-powers off after 5 minutes if no connection is made
Q: The headphones aren’t connecting via Bluetooth. What should I check?
1. Confirm pairing mode — hold MFB for 5 seconds until LEDs flash red/blue alternately
2. Ensure you’re within the 10m Bluetooth range with no obstructions
3. Clear the paired device list: hold volume “+” and “-” together for 5 seconds in standby mode
4. Verify the connecting device supports Bluetooth
5. If prompted for a passcode, try ‘0000’ or ‘1234’
6. Forget the device in Bluetooth settings, update phone software, then retry
Q: How do I dual pair to two devices at once?
1. Pair the Rockerz 551ANC to your first phone as usual, then switch it off
2. Switch the headphone on again, enter pairing mode, and pair to your second phone via its Bluetooth settings
3. Switch the headphone off one more time, then switch it on with a short press (not entering pairing mode) — it will auto-reconnect to the second phone
4. On the first phone, find “boAt Rockerz 551ANC” in Bluetooth settings and select it to pair — both phones are now connected
5. Try dual pairing with other devices if the issue persists
Charging & Battery Issues
Q: How do I charge the Rockerz 551 ANC?
Plug one end of the USB Type-C cable into the headphone’s charge port and the other into a computer or wall adapter.
Q: The headphones won’t charge, or battery life seems low. What should I do?
1. Test the charging cable on another device to rule out a faulty cable
2. Use only a 5V/2A charger
3. Charge until the red LED turns completely blue (fully charged)
4. Check for electrical damage or tampering
5. Clean the charging port with a cotton swab if clogged with dirt
6. Confirm your adapter/cable supports fast charging
Q: What do the LED battery indicators mean?
Low Battery: Below 10 minutes remaining talk time — voice prompt every minute, red LED flashes quickly
Charging: Solid red LED (headphones shouldn’t be turned on while charging)
Fully Charged: Solid blue LED indicator
Q: Why won’t the headphones power on?
1. Confirm it’s properly charged (red light turns blue)
2. Verify you’re using a correct-voltage 5V/2A output charger
3. Check for mishandling, broken wires, or exposure to heat/sunlight
Sound Issues
Q: The sound is distorted, low volume, or low bass. How do I fix it?
1. Check your device’s equalizer settings and reset to Normal/Default/None
2. Reset the device or clear the paired devices list
3. Clean earwax buildup on the earcups with a cotton swab and alcohol, then blow-dry from a distance
4. Stay within the 10m Bluetooth range with no obstructions
Q: The volume keeps changing on its own. Why?
1. Check for equalizer settings on the connected device and reset to Normal/Default/None
2. Test with different media players and devices to isolate whether it’s device-specific
Microphone Issues
Q: My microphone isn’t working. What should I check?
1. Reset your Rockerz 551 ANC
2. Ensure the microphone isn’t blocked by dust or particles
3. Check that the mic is positioned at an appropriate distance from your mouth
4. Test using a voice recorder app to confirm it’s picking up audio
5. Check for exposure to sunlight, fire, or liquid damage (not water resistant)
Other Functional Issues
Q: The built-in controls aren’t working. How do I fix this?
1. Test the controls on a different connected device
2. Unpair/forget the device, reset, and pair again
3. Confirm your media player supports remote controls
4. Check whether controls fail specifically during calls or other media apps
5. Inspect for physical damage or exposure to hazards
Q: The voice assistant won’t activate. What’s wrong?
1. Confirm Google Assistant or Siri is enabled on your paired device
2. Long press for 2 seconds and release — some devices may restrict this feature by default
Device Controls & General FAQs
Q: How do I power the headphones on/off?
Power On: Press & hold MFB for 4 seconds (blue LED flashes 1 second, then red/blue alternate)
Power Off: Press & hold MFB for 4 seconds (red LED flashes 1 second)
Q: How do I factory reset / clear paired devices?
1. Unpair/forget the device from your Bluetooth list
2. Long press MFB and Volume Down “-” simultaneously for 4 seconds (press Volume “-” slightly earlier)
This clears all paired device history
Q: How do I control calls, playback, and volume?
Answer/End Call: Short press MFB once
Reject Call: Double press MFB during ring
Volume +/-: Short press respective volume button (tone plays at max)
Next Track: Hold Volume Up “+” for 2 seconds
Previous Track: Hold Volume Down “-” for 2 seconds
Voice Assistant: Triple press MFB
Q: How do I switch between ANC, Ambient, and Normal modes?
Short press the ANC button to cycle through modes: Ambient → ANC ON → Normal Mode.
Q: How do I switch EQ / sound modes?
Long press the ANC button for 2 seconds to toggle between Signature Sound mode and Balanced Sound mode.
Q: What is ASAP Charge and which cable do I need?
ASAP Charge is boAt’s patented fast-charging technology — 10 minutes of charging can deliver up to 90 minutes of playback (follow the norms in your user manual). For effective ASAP charging, use a Type-C adapter rated at 5V/3A.
Q: Does the Rockerz 551 ANC support aptX and CVC?
aptX: Yes, but your media device must also support aptX for it to work. Check
aptx.com for device compatibility.
CVC (Clear Voice Capture): Yes — used for noise cancelling and enhancing selective listening during calls
Q: Does it support low latency for gaming?
Rockerz 551 ANC features low latency for entertainment needs generally (activates automatically once connected, no manual trigger required). It’s suitable for casual gaming — not recommended for professional/competitive gaming, since experience also depends on your media device.
Q: Can I swim or shower with the Rockerz 551 ANC?
No. The Rockerz 551 ANC is not IPX4 certified, meaning it cannot withstand water jet spray or submersion. boAt recommends avoiding use during swimming sessions.
Need More Help?
For additional support and resources, please contact boAt support:
Phone: 022-6918-1920 (9 AM – 7 PM, Closed Sundays & Holidays)
WhatsApp: +91-9667700177 (Available for quick assistance)
Official Support Page: boAt Rockerz 551 ANC Support