The K371-BT Professional Bluetooth Closed-Back Studio Headphones from AKG are designed to offer the same acoustic performance (or voicing) as the wired K371 and features 50mm custom drivers, a 5 Hz to 40 kHz extended frequency response that follows the Harman Target Curve, AAC and SBC codecs, and a battery life of up to 40 hours. They can be used to stream audio from your studio applications, smartphone, tablet, MP3 player, or computer.

The K371-BT headphones are built with gesture control and Bluetooth 5.0 connectivity. No additional DSP is on the Bluetooth input, so the sound is naturally reproduced without coloration. With its foldable design, the K371-BT headphones can easily be taken anywhere.

Features:
Closed-back design
Pure OFC voice coil
5 Hz to 40 kHz extended frequency response follows the Harman Target Curve
Up to 40 hours of battery life
Lithium-ion polymer battery type (Harman AVL)
AAC, SBC codecs
32 Ohms impedance
Same acoustic performance (voicing) as the K371 headphones in the wired version
Compact, foldable design

AKG K371 Specs
Headphone
Earpiece Design Over-Ear (Circumaural)
Earpiece Connection / Wearing Style Headband
Driver Type Dynamic
Number of Drivers 1, per Earpiece
Driver Size 1.97" / 50 mm
Voice Coil Copper
Impedance 32 Ohms
Active Noise Cancellation No
Foldable Yes
Performance
Frequency Response 5 Hz to 40 kHz (Wireless)
Sensitivity 114 dB
Wireless Connectivity
Supported Audio Codecs AAC, SBC
Bluetooth 5.0
NFC None
Battery
Battery Chemistry Lithium-Ion Polymer (LiPo)
Runtime 40 Hours
Physical
Weight 10.6 oz / 300 g
Packaging Info
Package Weight 1.99 lb
Box Dimensions (LxWxH) 9.6 x 9 x 4.4"

(AKG K371-BT)