Energy Sistem Style 4 Headphones True Wireless Stereo (TWS) In-ear Calls/Music USB Type-C Bluetooth Grey

Charging case type: Wired | Charging case connector type: USB Type-C | Microphone type: Built-in | Battery technology (charging case): Lithium Polymer (LiPo) | Battery capacity (charging case): 400 mAh | Works with Apple Siri: Yes | Battery recharge time (charging case): 1.5 h | Music playback: Yes | Input voltage (charging case): 3.7 V | Wearing style: In-ear | Control type: Buttons, Touch | Recommended usage: Calls/Music | Battery recharge time: 1.5 h | Microphone sensitivity: -42 dB | Wireless range: 20 m | Bluetooth: Yes | Package type: Box | Connectivity technology: True Wireless Stereo (TWS) | Headphone frequency: 20 - 20000 Hz | Driver unit: 1 cm | Frequency band: 2.4 GHz | Charging case: Yes | Driver type: Dynamic | Weight: 42 g | Works with the Google Assistant: Yes | Headset type: Binaural | Battery voltage: 3.7 V | Bluetooth profiles: HFP | Volume control: Button | Bluetooth profiles: HSP | Bluetooth profiles: SBC | Depth: 35 mm | Bluetooth profiles: A2DP | Battery technology: Lithium Polymer (LiPo) | Right earpiece battery capacity: 30 mAh | Charging case capacity: 400 mAh | Continuous audio playback time (with charging case): 25 h | Product type: Headphones | Ear coupling: Intraaural | Quick start guide: Yes | LED indicators: Status | USB connector: USB Type-C | Battery type: Built-in battery | Left earpiece battery capacity: 30 mAh | Cables included: USB Type-C | Microphone frequency: 100 - 10000 Hz | Product colour: Grey | Bluetooth version: 5.1 | Bluetooth profiles: AVRCP | Height: 30 mm | Continuous audio playback time: 5 h | Battery charge indicator: Yes | Width: 65 mm