NWB Wireless Bluetooth Headphones

Brand New Wireless Headphones featuring a built-in microphone with a purrfect set for chatting with friends. Also includes an adjustable headband along with volume limiting technology for a comfortable fit and safe listening Compatible with iPhone, iPad, Samsung Galaxy, Android smartphones, tablets & other Bluetooth devices Specifications: driver diameter: 40mm; impedance: 32 Ohms; frequency response: 20 Hz - 20kHz; sensitivity: 85 dB +/- 3 dB; battery capacity: Li-ion battery 3.7 V 200 mAh; playtime: 3-4 hours; charging time: 1.5-2 hours; bluetooth range: 10 m; bluetooth version: 5.0; charging method: micro USB charging