Brand: JBL Model:V750NXT Color: Grey Headphone cable length: 3.93 feet Headphones Jack Type: 3.5 mm Ear Cushion Material: PU Leather Bluetooth Version: 4.0 Dynamic Frequency Response Range: 10Hz-22kHz Battery Type: Polymer Li-ion Battery (3.7V, 850mAh) Charging Time (hours from empty): 3 hours Speed Charging Time (hours): 2.5 Maximum Music Play Time with ANC Off (hours): 15 Maximum Music Play Time with ANC on (hours): 20 Driver size (mm): 40.0 Number of Drivers per Ear: 1.0 Driver Sensitivity at 1kHz/1mW (dB): 92dB@1kHz, 1mW Impedance (ohms): 16 Bluetooth profiles: HFP v1.6, HSP v1.2, A2DP v1.2, AVRCP v1.4 Bluetooth Transmitter Power: 4 dbm Bluetooth Frequency: 2.402GHz-2.48GHz Bluetooth Transmitted Modulation: GFSK, π/4-DQPSK, 8DPSK Rechargable battery / Remote control on ear cups / Detachable Cable JBL Legendary Pro Audio Sound / Leather headband Bulit-in Microphone / Comes with APP / Over-ear / Flat-fold design Wireless / Hands Free Call / TruNote Ambient Aware / Carrying case / Adaptive Noise Cancelling / Siri/ Google Now 1 Year Warranty Built–In Microphone With Echo Cancellation Technology For Crystal Clear, Hands–Free Calls A Sleek Fold–Flat Design And A Premium, Hard Carrying Case Allow Maximum Portability And Protection Adaptive Noise Cancelling Over-Ear Bluetooth Headphones Legendary JBL Pro Audio Sound 15 Hour Battery, Quick Recharge In 3 Hours Brand JBL SKU 100279181_NP-1020537538 Model V750NXT