Features 1 Dual Mode Connection Seamlessly switch between wired and wireless modes to enjoy uninterrupted audio no matter your preference 2 40mm Large Diaphragm Experience dynamic full range sound with enhanced bass and clear treble perfect for immersive gaming or music listening 3 AAC SBC Audio Delivers high fidelity sound quality with advanced audio decoding technologies ensuring crystal clear audio playback 4 HD Calls Built in microphone system captures ambient sounds precisely for clear and smooth voice calls making communication efficient and effective 5 30H Playback Enjoy up to 30 hours of continuous listening time on a single charge thanks to the long lasting battery life 6 Foldable Design Compact and foldable design makes it easy to carry and store perfect for on the go use and travel convenience Specifications GeneralSpecificationBrandLenovoModelTC3307ColorWhite BlackWearing TypeHeadphonesSpeaker40mmAudio CodecAAC SBCFrequency Response20Hz 20kHzbluetoothbluetooth VersionV5 3Supported ProfilesHSP HFP A2DP AVRCPTransmitting Distance10mBattery ChargingPlayback Time30hCharging Time3hOther FeaturesMicrophoneYesSizeWeightProduct Weight0 3000kgPackage Weight0 4000kgProduct Size167 x 184 x 50mmPackage Size200 x 220 x 80mmPackage list1 Headphone1 Type C Charging Case1 Audio Cable