Features - 8 hours of play time - Sweat & waterproof - Customisable, secure sport-specific fit - Includes Comply Ultra™ foam tips - Premium sound with custom EQ Tech Specs Audio - Type: In-ear style - Noise-isolation: passive - Impedance: 16 ohms - Speaker sensitivity: 99 +/-3 dB at 1 kHz - Output max: 10 mW RMS (with level limit) - Total harmonic distortion < 5% (1 kHz, 1 mW) - Audio format: 16-bit stereo - Codec: Bluetooth SBC implementation - Response bandwidth: 20 Hz – 20 kHz - Driver size: 6 mm Bluetooth - Bluetooth version: 4.1 - Frequency band: 2.4 GHz - Profiles: Handsfree, Headset, A2DP, AVCRP, SPP - Wireless range: class 2 standard range 10 metres Integrated Microphone - Type: MEMS, omnidirectional - Sensitivity: –38 dB +/-3 dB (test conditions: 94 dB SPL, 1 kHz, A-weighted) Compatible Products - Any Bluetooth device with HFP, HSP and A2DP Colour - Alpha Metallic/Jade Battery - Play time: 8+ hours (May vary dependent on usage, device and aging) - Charging time: 2 hours; quick charge: 10 min = about 1-hour play time - Charging: via USB charging cable with Pogo pin connector - Input power: DC 5V 1A - Type:

ion - Battery voltage: 3.8 V - Energy voltage in watt hrs per battery: 0.2wh Weight & Dimensions - Headset: 501 mm x 13 mm x 23.6 mm - Controller: 42.4 mm x 11.6 mm x 6.35 mm - Charger: 95 mm x 18.1 mm x 9.4 mm - Weight of single bud (no fins and tips): 14.8 g - Weight of charger: 5.9 g Rugged Versatility for the All-Round Runner and Outdoor Athlete - At our core we are runners, but the life of an outdoor athlete thrives with balance. - From trail runs and mountain bike rides to summit scrambles and deep powder days, our passion for the outdoors is a thread that runs through a variety of pursuits. - The X4 embodies that spirit of versatility. - The evolution of our do-it-all wireless headphones for the all-round runner and outdoor athlete – comfortable, rugged and fully waterproof to tackle any run, ride or trail in any condition. - A single charge provides eight full hours of wireless play time, plenty of power for a full day outside. What's in the box X4 sport wireless headphones Comply Ultra ear tips M/L Oval silicone ear tips S/L Secure-fit

fins 1/2/3 Speed cinch USB 2.0 charging cable Shirt clip Carry pouch