bluetooth compliance: bluetooth specification 2.0 with edr, hands-free profile 1.5, headset profile 1.1 talk time: up to 6 hours standby time: up to 150 hours charging time: up to 2h security: encrypted link operating range: up to 10h dimensions: 53 x 18 x 12 mm weight: 10 g parallel imported warranty: warranty one year delivery within 2-4 business days