Beats by Dr. Dre MHAJ2AM/B Overview The matte black Beats by Dr. Dre Studio2 Wireless Headphones feature Bluetooth wireless technology and are capable of a range of operation of up to 30 feet. The headphones are powered by Beats Acoustic Engine DSP to reproduce your audio. Beats’ Adaptive Noise Cancelling technology can be used to help eliminate noise from your commute, whether you’re listening to your music or not. On-ear cup controls allow you to answer calls, skip tracks, and adjust volume without reaching for your portable device. Not limited to wireless function, the Studio2 Wireless headphones include a RemoteTalk cable with mic and remote, allowing you to use the headphones with wired sources as well. The built-in rechargeable battery can provide up to 12 hours of wireless or 20 hours of wired operation. To preserve battery life, the Auto On/Off feature will automatically turn the headphones off when you unplug them from a wired connection. The battery’s remaining life is displayed via the Battery Fuel Gauge. Put the World on Mute Silence the noise from your daily commute or the drama from your loud neighbors with dual-mode Adaptive Noise Cancelling. When you’re listening to music, ANC automatically strikes the perfect blend between your music and the world outside. If you only want to use the headphones to cancel external noise, the ANC Only mode automatically increases the level of noise cancellation What Batteries? Dead batteries can kill your vibe. The Beats Studio2 Wireless comes with a built-in rechargeable battery that lasts 12 hours when used wirelessly and 20 hours when you do decide to plug in. To prevent wasting energy, the Auto On/Off feature turns the headphone off when you unplug from a wired connection, and with the Battery Fuel Gauge, you always know how much juice is left. Forget specialized adapters; the Studio2 Wireless can be charged via micro USB almost anywhere

MDR-1AM2 Premium Hi-Res Headphones 1AM2 Headphones – The precision sound and full-spectrum clarity of the MDR-1AM2 headphones captures the hearts of music lovers everywhere. And with an ultra-lightweight frame and pressure-relieving earpads, you can listen for hours in total comfort. Enjoy music as the artist intended with High-Resolution Audio – Take your digital music collection to another level with High-Resolution Audio. By digitally capturing music at a higher rate than CD, High-Resolution Audio allows you to get closer to the original studio recording and enjoy your music just as the artist intended. Aluminum-coated LCP diaphragm for more precision – An aluminum-coated, liquid crystal polymer diaphragm gives a more consistent and precise sound across the entire frequency range than even a conventional LCP driver. High frequencies uniquely contained in High-Resolution Audio especially benefit from the added rigidity, and energy lost during transmission to the headphone housing is more uniform, ensuring a true and authentic performance. Wide frequency response for a full range of sound – The wide-band frequency range, spanning 3 Hz to 100 kHz, is designed for a broad variety of music styles. Such a wide frequency response ensures even advanced audio formats, which require a much larger spectrum, can be accurately reproduced without hard limits or frequency roll-off, giving your music more life and realism. Patterned grill for smooth ultra-highs – Grills help to protect the precision headphone diaphragm and are designed specifically for passing ultra-high frequencies without introducing “color” to the sound. The grill pattern is based on a Fibonacci sequence to ensure no frequency is boosted or cut. The result is a smooth, refined sound right across the frequency range. Supplied balanced-connection headphone cable – A 4.4Φ balanced connection cable separates left and right sound signals completely, unlike conventional headphone cables which share a ground wire. This minimizes signal transmission loss and resulting sound deterioration, so you hear less distortion and cross-talk. Silver-coated oxygen-free copper – The MDR-1AM2 uses silver-coated oxygen-free copper cables, designed to minimize resistance and signal-transmission loss. The result is less sound degradation, finer detail, and smoother treble sounds. Heavy bass with Beat Response Control – Built-in Beat Response Control improves the transient characteristics in bass sound and delivers accurate rhythm. Enfolding closed-back design seals in sound – The closed-back, enfolding design wraps around the ear, helping to seal in music and keep distractions out. Meticulously crafted acoustics ensure sound is exclusively directed towards your ears, so you hear even the subtlest of sounds. You’ll also feel every beat, as the closed-back design helps to maximize the bass signatures in your music. Pressure-relieving earpads for total comfort – Soft, synthetic leather earpads with pressure-relieving cushions have been designed to rise and shape around your ears, ensuring a comfortable fit. Smooth materials and seamless stitching provide comfort and durability for long hours of listening. Super-lightweight design for hours of comfort – The MDR-1AM2’s super lightweight design relieves pressure on your ears so you can listen for hours in comfort. Swivel design makes travel easy – Take these headphones with you anywhere. A swivel design makes them easy to store on the go. The earcups swivel flat for easy packing in a bag or slipping into the supplied pouch. Specs Cord Length 47-1/4″ Cord type Detachable/Silver-coated OFC Diaphragm Aluminum-Coated LCP Driver Unit 1.57 in (Dome Type) Frequency Response 3–100,000 Hz Headphone Type Closed Dynamic Impedance (Ohm) 16 Ω Magnet Neodymium Plug Gold-plated L-shaped Stereo Mini Sensitivities (dB/mW) 98 dB / mW Wearing Style Circumaural

Sony WH-XB900N Feel the power of extra bass Next-level digital noise cancelling technology Enjoy the convenience of hands-free calling thanks to the integrated microphone and Bluetooth connectivity Get up to 30 hours of battery life Touch sensor controls to pause play skip tracks control volume activate your voice assistant and answer phone calls Quick attention mode for effortless conversations without taking your headphones off Activate Alexa, the Google Assistant, or your voice assistant with a simple touch Optimize your sound settings with the Sony-Headphones connect app High quality wireless audio with Bluetooth and NFC plus LDAC In the box carrying pouch connection cable (Headphone cable (approx. 1.2 meter stereo mini plug) USB cable card operating instructions reference guide) Size & Weight WEIGHT Approx. 8.96 oz (254 g) General Features VOLUME CONTROL Touch sensor HEADPHONE TYPE Dynamic CORD LENGTH approx. 47 1/4 in (1.2 m) (supplied headphone cable), Approx. 47 1/4 in (1.2 m) (supplied headphone cable) FREQUENCY RESPONSE (BLUETOOTH® COMMUNICATION) 20 Hz–20,000 Hz (44.1 kHz Sampling)/20 Hz–40,000 Hz (LDAC 96 kHz Sampling, 990 kbps) MAGNET Neodymium NFC Yes IMPEDANCE (OHM) 50 ohm (1 kHz) (when connecting via the headphone cable with the unit turned on) , 25 ohm (1 kHz) (when connecting via the headphone cable with the unit turned off) PLUG L-shaped stereo mini plug (supplied headphone cable) PASSIVE OPERATION Yes DSEE Yes CORD TYPE Detachable Single-sided type DRIVER UNIT 1.57 in DIAPHRAGM PET 25 μm S-MASTER HX No WEARING STYLE Over-ear FREQUENCY RESPONSE (ACTIVE OPERATION) 2 Hz–20,000 Hz SENSITIVITIES (DB/MW) 101 dB/mW (when connecting via the headphone cable with the unit turned on) , 103 dB/mW(when connecting via the headphone cable with the unit turned off) Battery BATTERY LIFE (WAITING TIME) Max. 50 hrs (NC ON) , Max. 300 hrs (NC OFF) BATTERY LIFE (CONTINUOUS MUSIC PLAYBACK TIME) Max. 30 hrs (NC ON) , Max. 35 hrs (NC OFF) BATTERY LIFE (CONTINUOUS COMMUNICATION TIME) Max. 30 hrs (NC ON) , Max. 32 hrs (NC OFF) BATTERY CHARGE METHOD USB BATTERY CHARGE TIME Approx. 7 hrs