... reduction and echo cancellation technologies 4-6 hours talk time or 130 hours standby time 5-Multifunction button to control ... dropped calls and reduced interference9-Compatible with Bluetooth 1.2 or 1.1 enabled mobile phones, PDAs, PCs, printers and ... profiles 11-Status LED light that can be turned off or on depending on user preferencePacking includes: 1PC Bluetooth headset1PC user manual1PC travel ...