- Brand Name: Rondaful
- Control Button: No
- Active Noise-Cancellation: Yes
- Style: In-Ear
- Wireless Type: bluetooth
- Connectors: None
- Communication: Wireless
- Vocalism Principle: Electrostatic
- Volume Control: Yes
- Frequency Response Range: 20-21000Hz
- Function: Sport
- Function: for Video Game
- Function: Common Headphone
- Function: For Mobile Phone
- Function: HiFi Headphone
- Sensitivity: 122±3dB
- Is wireless: Yes
- Plug Type: Wireless
- With Microphone: Yes
- Model Number: F9 TWS
- Resistance: 32Ω
- Waterproof: Yes
- Line Length: None
