The GSM Walkers Razor XV Muff Retractable Digital Earbuds help you to enjoy your music on the go. They're compatible with Bluetooth to allow you to wirelessly stream audio signals from your phone, tablet and other device. The included rechargeable battery lets you use the set for extended periods. These earbuds with microphone are ideal for taking phone calls hands free. You can use them with either foam or silicone tips for a more comfortable fit. 
GSM Walkers Razor XV Muff Retractable Digital Earbuds:
Bluetooth connectivity
Independent volume control
NRR target is greater than 26 dB
Sound-activated compression
Powered by rechargeable LIP battery, 250mAh
Hi-gain omnidirectional microphones for clear sound enhancement
HD speakers in the earbuds for wide range audio quality
Earbud housings compatible with mushroom-style multi-layer silicone (2 sizes) as well as foam tips (2 sizes) for higher NRR rating
Auto-shut off (low-power mode) after 4-6 hours
Timer resets and unit wakes after any button is pressed
Integrated microUSB port
AC wall adapter with USB port and included 1m microUSB cord for charging
Storage case included
Patent pending
Retractable earbuds are easy to store