| Model | Unear M20 |
| General | |
| Battery Capacity | 3.7 V/4400 mAh Talk time: 30 hours Music time: 8 hours |
| Accessories Included | 1 × Quick Guide, 1 × USB Dongle, 1 × Data Cable |
| Operating System Support | Windows 7, Windows8.1, Windows10, Windows11, Mac OS, Chrome OS |
| Power Supply | Type‑C 5 V, built‑in Lithium battery |
| Product Dimensions (W × H × D) (mm) | 145 × 34 × 145 |
| Packaging Dimensions (W × H × D) (mm) | 157.5 × 62 × 157.5 |
| Operating Temperature | 0°C to 40°C |
| Storage Temperature | ‑20°C to 60°C |
| Operating Humidity | 10% to 90% RH (non‑condensing) |
| Weight (kg) | Net weight: 0.4 Gross weight: 0.7 |
| Bluetooth | |
| Bluetooth Version | 5.3 |
| Bluetooth Performance | Supports A2DP, AVRCP, HFP, HSP and BLE Protocols |
| Speaker | |
| Rated Output Power | 0.75‑inch tweeter, 3 W + 1.75‑inch woofer, 5 W |
| Frequency Response Range | 75 Hz to 20 kHz |
| Speaker | Two speakers |
| Microphone | |
| Microphone Type | 8 MEMS |
| Pickup Range | 6 meters |
| Audio Performance | |
| Smart Noise Reduction | Support |
| Full‑duplex Transmission | Support |
| Auto Gain Control | Support |
| Cascade | |
| Cascade Mode | Bluetooth |
| Cascaded Devices | 2 |
| Interface | |
| USB | USB Type‑C |
| Basic | |
| Connection Method | Wireless Bluetooth, USB, Type‑C |
Hotline(English):
800-860-7999(USA) | 800-914-6008 (Canada)
+86 571 85309090 (Other Regions)
Email/Skype: service@uniview.com