Plantronics M70 Bluetooth Headset – Ultra-Lightweight Mono Wireless Headset
The Plantronics M70 is our ultra-lightweight mono Bluetooth headset designed for professionals and busy commuters who need reliable hands-free communication without bulk. Weighing just 0.3 ounces, the M70 delivers crystal-clear HD voice quality through dual-microphone AudioIQ2 noise cancellation, ensuring your calls come through loud and clear even in noisy environments.
We engineered the M70 for all-day wearability with a soft gel eartip and flexible over-the-ear loop that conforms to your ear shape. A single charge delivers up to 11 hours of talk time, while DeepSleep mode extends standby power to 6 months when the headset is away from your phone. The M70 pairs instantly with two devices simultaneously, letting you switch seamlessly between your smartphone and tablet. Stream GPS directions, music, and podcasts directly to the headset while staying connected for incoming calls.
M70 core specifications
Audio Quality & Noise Cancellation
We equipped the M70 with our AudioIQ2 technology, which uses two precision microphones to isolate your voice from background noise. One microphone captures your speech while the second samples ambient sound — wind, traffic, café chatter — and actively subtracts it from the outgoing call audio. This dual-microphone system delivers wideband HD voice on compatible networks, reproducing frequencies up to 6.8 kHz for natural vocal tone.
When you’re streaming media, the M70 supports A2DP Bluetooth profiles for GPS turn-by-turn directions, music playback, and podcasts. Audio quality for streaming is optimized for spoken-word content rather than high-fidelity music, but it provides clear navigation prompts and intelligible podcast dialogue without requiring you to pull out your phone.
Battery Performance & DeepSleep Mode
A fully charged M70 provides 11 hours of continuous talk time and up to 16 days on standby. We included DeepSleep hibernation mode to preserve battery life when the headset is out of Bluetooth range for more than 90 minutes. In DeepSleep, the M70 can hold a charge for up to 6 months, so you can toss it in a travel bag and find it ready to use weeks later.
The headset recharges via micro-USB in approximately 90 minutes. A quick 15-minute charge delivers about two hours of talk time if you need a fast power boost before a call. Battery status is announced through voice alerts, and a red LED pulses when the charge drops below 10 percent.
Fit, Comfort & Wearing Options
Eartip & Ear Loop Design
The M70 ships with three soft gel eartip sizes (small, medium, large) and an optional over-the-ear stabilizer loop. The eartip sits gently in your ear canal without creating pressure, and the loop hooks over your outer ear for additional security during movement. We designed the loop from flexible plastic that bends to match your ear contour, and it rotates 180 degrees so you can wear the headset on either ear.
Weight & All-Day Wearability
At 0.3 ounces, the M70 is one of our lightest mono headsets. Many users report wearing it through multi-hour conference calls or long commutes without fatigue. The headset measures 1.9 inches tall and 0.6 inches wide, making it discreet enough that it doesn’t protrude noticeably when worn.
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Common Questions About the M70
The M70 provides up to 11 hours of continuous talk time and 16 days on standby with a full charge. When the headset is out of Bluetooth range for more than 90 minutes, it enters DeepSleep mode and can hold a charge for up to 6 months. A 15-minute quick charge delivers approximately 2 hours of talk time.
Yes, the M70 supports multipoint Bluetooth pairing, which lets you maintain active connections to two devices simultaneously. You can pair it with your smartphone and laptop, for example, and the headset will automatically route incoming calls from either device without manual switching. The M70 remembers up to eight paired devices total.
The M70 does not have dedicated voice assistant activation. However, you can trigger your phone’s voice assistant by using the standard method on your device (such as long-pressing the home button on your phone) while wearing the headset, and audio will route through the M70. For native voice assistant support, consider our Explorer 500 or Voyager Legend models.
The M70 uses Bluetooth 3.0 and provides a wireless range of up to 33 feet (10 meters) in open space. Actual range varies depending on obstacles like walls and electronic interference. The headset announces connection status through voice alerts when you move out of range or reconnect.
The M70 weighs just 0.3 ounces and ships with three soft gel eartip sizes and an optional over-the-ear stabilizer loop. Most users report wearing it comfortably through multi-hour calls or full workdays. The flexible ear loop rotates 180 degrees so you can wear the headset on either ear, and the gel tips sit gently without creating pressure.
Yes, the M70 supports A2DP Bluetooth streaming for GPS navigation, music, and podcasts. Audio quality is optimized for spoken-word content rather than high-fidelity music, so it works well for turn-by-turn directions and podcast dialogue. You can stream media while remaining connected for incoming calls.
The M70 announces remaining talk time through voice alerts when you power on the headset. A red LED pulses when the battery drops below 10 percent, and a voice prompt warns you when charge is critically low. You’ll typically hear a low battery warning with enough time to finish your current call before the headset powers off.