| Model | E2031 |
| Color | Black, White |
| Type | Semi in-ear |
| Audio Codecs | aptX Adaptive, aptX, AAC, SBC |
| Bluetooth Version | 5.2 |
| Bluetooth Range | 10m/33ft (Open Area) |
| Number of Microphones | 4 |
| IP Rating | IPX5 |
| Play Time (Varied by Volume Level & Audio Content) | Up to 6.5 Hours (Single Charge) Up to 27 Hours (with the Charging Case) |
| Charging Time | Earphones: About 1 Hour 30 Minutes Charging Case: About 2 Hours |
| Frequency Range | 20-20kHz |
| Voice Assistant | Supports Siri, Cortana, Google Assistant, etc |
| Product Dimension | Earphone: 39 x 16.5 x 16.8 mm / 1.54 x 0.65 x 0.66 inches Charging Case: 48 x 23 x 57.5 mm / 1.89 x 0.9 x 2.26 inches |
| Product Weight | Earphone: about 4 g / 0.008lbs Charging Case: about 37 g / 0.08lbs |
| Package Dimension | 120 x 88 x 40 mm/4.72 x 3.46 x 1.57inches |
| Package Weight | 420g/0.93lbs |
| Package Contents | 1 x Onyx Ace Pro True Wireless Earphones 1 x Type-C Charging Cable 1 x Warranty Card 1 x User Manual |
