Bluetooth headphones TWINS 903 white

Bluetooth profiles: HFP | Wearing style: In-ear | Driver unit: 1 cm | Recommended usage: Calls/Music | Product type: Headset | Sustainability certificates: RoHS | Ear coupling: Intraaural | Bluetooth profiles: AVRCP | Bluetooth: Yes | Wireless range: 10 m | Microphone frequency: 100 - 16000 Hz | Microphone type: Built-in | Talk time: 4 h | Bluetooth profiles: HSP | Bluetooth version: 5.0+EDR | Headphone frequency: 20 - 20000 Hz | Headphone sensitivity: 102 dB | Sustainability certificates: CE | Connectivity technology: Wireless | Bluetooth profiles: A2DP | Product colour: White | Microphone sensitivity: 42 dB