Green Calls/Music In-ear Headset True Wireless Stereo (TWS) Bluetooth 5.3 Intraaural Earbuds 20 - 20000 Hz 32115 dB Microphone type: Built-in Built-in battery Urbanista Austin - Lake Green Performance LED indicators Yes International Protection (IP) code IPX4 Control type Touch Colour name Lake green Product colour Green Headset type Binaural Recommended usage Calls/Music Wearing style In-ear Product type Headset Ports & interfaces Bluetooth profiles A2DP, AVRCP, HFP, HSP, SBC Bluetooth version 5.3 Bluetooth Yes Connectivity technology True Wireless Stereo (TWS) Headphones Driver type Dynamic Driver unit 1.3 cm Headphone sensitivity 115 dB Impedance 32Headphone frequency 20 - 20000 Hz Ear coupling Intraaural Intraaural headphones type Earbuds Microphone Number of microphones 2 MEMS (Micro-Electro-Mechanical System) microphone Yes Microphone type Built-in Battery Continuous audio playback time (with charging case) 20 h Continuous audio playback time 5 h Battery type Built-in batte