ESPERANZA BLUETOOTH TWS ARIES EH228K EARPHONES

Efficiency Control Type: Buttons Product color: Black Wearing style: In-ear Product type: Headphones Application: Calls/Music Ports and interfaces Connection method: Wireless Frequency band: 2.402-2.480 GHz Bluetooth version: 5.0 Bluetooth: Yes Bluetooth profiles HFP A2DP HSP AVRCP USB connector: Micro-USB Battery Battery capacity: 40 mAh Charging time: 1 hour Supported battery type: Built-in Talk time: 4 h Battery capacity (charging case): 300 mAh Battery voltage: 5V Battery type: Lithium Polymer (LiPo) Microphone Microphone type: Built-in microphone Headphones Frequency response: 20 - 20000 Hz Earphone type: In-ear headphones Headphone construction: In-ear Base station Base Station Color: Black