Casti Trust Zena Bluetooth Wireless Headphones Specifications General Height of main product (in mm) 195 mm Width of main product (in mm) 175 mm Depth of main product (in mm) 73 mm Total weight 186 g Weight of main unit 166 g Connectivity Connection type wireless, wired Connector style straight Cable style round Bluetooth yes Wireless range 10 m Wireless protocols Bluetooth Bluetooth version 5.0 Connector type micro-USB Audio Sound reproduction Stereo Audio channels 2.0 Driver size 40 mm Impedance 32 Ohm Driver units 2 Sound pressure level 100 dB Microphone yes Detachable microphone no True Wireless Stereo (TWS) no Bluetooth profiles A2DP, AVRCP, HFP Audio codecs SBC Frequency response 20 Hz - 20000 Hz Features NFC no Background noise reduction no Foldable yes Software no Accessories 3.5mm audio cable, micro-USB charge cable Noise reduction no Headphone Adjustable headband yes Active Noise Cancelling no Total harmonic distortion 1 % Noise reduction level 0 dB Ear-cap contact pressure high Earcup type on-ear Ear-cup material synthetic leather Ear-cap construction closed Swivel earcups yes Rotating earcups yes Output channels 2 Magnet type Neodymium Microphone Sensor type microphone electret Pick-up pattern Omnidirectional Frequency response microphone 150 Hz - 4000 Hz Echo cancellation yes Gaming Designed for gaming no Lighting Lights no Protection Waterproof no IP Code (International Protection Rating) no Power Recharge time 3 hours Playing time 75 hours Rechargeable battery yes Max battery life - music 75 hours Battery type (AA, AAA, etc.) polymer Battery composition (Alkaline, Li-ion, etc.) Lithium-ion polymer Input Power source battery, USB Compatibility Suitable for Listening to music, Home, Office Compatible Device Types Bluetooth devices, smartphone, tablet, pc, laptop Compatible Software Platforms Mac OS, Windows, iOS, Android Control Controls on earcap no Controls Bluetooth, play controls, volume control, voice assistant Remote control no LED indicators yes https://www.trust.com/en/product/24069-zena-bluetooth-wireless- headphones