Bluetooth Version  | 
  V5.2  | 
Bluetooth Frequency  | 
  2.402GHz - 2.48GHz  | 
Bluetooth Profile  | 
  A2DP, AVRCP, HFP, HSP  | 
| Bluetooth Codec | aptX™, AAC, SBC | 
| Bluetooth Transmitted Power | <5dBm | 
Maximum Working Range  | 
  15m (without obstacle)  | 
Battery Capacity  | 
  50mAh*2 (earbuds)  | 
| 400mAh (charging case) | |
Charging Time  | 
  1.5 hours (for earbuds)  | 
| 2 hours (for charging case via USB-C) | |
| 3.5 hours (for charging case via wireless charger). Not Compatible with MagSafe Magnetic Charging. | |
| Playtime | Up to 7 hours; Totally 30 hours with charging case (varies by volume level and audio contect) | 
| Input | DC 5V / 1A | 
| Dimensions | 66mm x 39mm x 29mm | 
| Weight | 48g |