Are the Sony WH-1000XM5 headphones good for travel?

Yes, they feature industry-leading noise cancellation and long battery life, making them ideal for travel.

What is the battery life of the Sony WH-1000XM5?

Up to 30 hours of playback on a single charge.

How do the Sony WH-1000XM5 compare to Bose 700?

The WH-1000XM5 offers slightly better noise cancellation and longer battery life, while Bose 700 has a more balanced sound profile.

Do the Sony WH-1000XM5 support fast charging?

Yes, a 10-minute charge provides up to 5 hours of playback.

Is there a warranty for the Sony WH-1000XM5?

Sony provides a standard one-year limited warranty, with extended options depending on the retailer.

Best Bitcoin Miners on Amazon for 2025

Compare efficiency, power, and ROI across the top ASIC miners available today.

Top Picks

Antminer, Whatsminer, and AvalonMiner — the most popular choices for 2025.

Antminer S19 Pro Hashrate: 110–120 TH/s

Power: ~3250 W
Efficiency: 29.5 J/TH

View on Amazon Bitmain | 220V

Comparison Highlights

Efficiency beats hashrate

Lower J/TH means better margins long-term.

Power infrastructure

3kW+ miners require 220V dedicated circuits.

Noise levels

Expect industrial fan noise — plan for cooling.

ROI is dynamic

Profitability depends on BTC price and electricity costs.

Buyer’s Guide

Specs to Prioritize

Efficiency: Target ~30 J/TH
Hashrate: Higher TH/s increases rewards
Power draw: Know your wattage
Noise: Industrial fans are loud

ROI Quick Math

Revenue: Hashrate × pool payout × BTC price
Costs: Power draw (kW) × hours × local kWh rate
Best/Average/Worst: Always model scenarios before buying
Halving: Rewards drop every 4 years — efficient miners survive longer

Common Pitfalls to Avoid

These mistakes cost miners more than hardware ever does. Avoid them to protect your margins.

Buying on specs alone

Real‑world power draw varies. Always check user reports, not just manufacturer sheets.

Ignoring electricity rates

High kWh costs can erase profits. Calculate ROI with your local rates before purchase.

Poor cooling setup

Heat buildup kills efficiency. Plan airflow and exhaust before plugging in.

No halving strategy

Rewards shrink. If your miner only works in bull runs, it’s not sustainable.

Frequently Asked Questions

Which miner is best for beginners?

Answer: The Antminer S9 is affordable and simple to set up, making it ideal for learning.

How long until ROI on an Antminer S19 Pro?

Answer: With cheap electricity, ROI can be ~12 months. With higher rates, expect 18+ months.

Can ASICs mine other coins?

Answer: They’re built for SHA‑256, so mainly Bitcoin and Bitcoin Cash. GPUs are better for multi‑coin mining.

Are they too loud for home use?

Answer: Yes, most miners exceed 75 dB. Use a garage, basement, or dedicated enclosure.

Do firmware upgrades help?

Answer: Reputable firmware can improve efficiency and fan control. Always confirm compatibility first.

Lock in your identity protection and credit monitoring

You can’t prevent every data breach, but you can control how quickly you detect threats and how prepared you are to respond. A strong identity protection plan gives you the tools to stay ahead of fraud.

Start with IdentityIQ Secure Max

Before You Buy Auto Insurance Rate Comparison Guide