Equipped with high definition 40mm drivers, Nova wireless headphones deliver brilliant sound quality punctuated with superior bass, so every track on your playlist pops. The ergonomic earpads let you enjoy up to 10 hours of music streaming with 2 hours of recharging time, and the convenient AUX support lets your tunes go on even when the battery goes off. Stay tuned in to the music with Nova. Features: Brilliant Sound Quality: Nova wireless headphones deliver brilliant sound quality punctuated with superior bass, so every track on your playlist pops 10 Hour PlayTime: The ergonomic earpads let you enjoy up to 10 hours of music streaming with 2 hours of recharging time AUX Mode: The convenient AUX support lets your tunes go on even when the battery goes off Clear Calls: Enjoy the convenience of crystal clear handsfree calling with the integrated microphone Perfect Fit: Adjustable slider headband with ergonomic earpads make long listening even more comfortable FM Support: Enjoy access to your favourite FM radio stations streamed directly into the headphones SPECIFICATION Bluetooth Version: v5.1 Bluetooth Profile: HSP, HFP, A2DP, AVRCP Bluetooth Chipset: JL 6955 Bluetooth Frequency Range: 2402MHz-2480Mhz Driver Diameter: 40mm Impedance: 32Ω Charging Time: 2-3 Hours Playing Time: 8-10 Hours Max TF Card Capacity: 32GB Battery Capacity: 300mAh Input: DC 5V,0.5A Battery Type: Li-Polymer Operating Distance: 10m FM Frequency Range: 87.5-108MHz