| Colour | Black |
|---|---|
| Model | Sounfii R4 |
| Color | Beige, Black |
| Bluetooth Version | 5.3 |
| Driver | 12mm Composite Diaphragm |
| Battery Capacity | Earbuds: 3.7V/35mAh Charging Case: 3.7V/400mAh Earbuds: 7 Hours |
| Playtime | With Charging Case: 28 Hours(50% Volume) |
| IP Rating | IPX4 |
| Net Weight | 45g |
| Gross Weight | 120g |
| Frequency Band | 2402-2480MHz |
| Maximum Transmit power | 5dBm |
| Brand | Tronsmart |
| Type | ireless Earphones |
| Connectivity | Bluetooth |
| Maximum Wireless Range | 59 feet |
| Microphone Features | Noise cancelling, Voice Activated |
| Headphone Fit | In-Ear |
| Battery Life | 28 hours |
| Battery Charge Time | 2 hours |
| Water Resistant | Yes |
| Built-In Microphone | Yes |
| Carrying Case | Yes |
Check the listing for details. Tronsmart Sounfii R4 In-Ear Bluetooth headphones True Wireless Earbuds Headset. Color: Beige, Black, Condition: New. Listed at 13.99 USD. Inspired by the mysteries of space, the design of Sounfii R4 combines premium materials with an ergonomic form factor to ensure a comfortable listen for every user. 1 x Sounfii R4 ENC Earphones. Bluetooth 5.3 and One-step Automatic Pairing.
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