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

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