# Recharge through any USB port or use the included wall socket-to-USB adapter With up to 9 hours of talk time between charges, this lightweight Bluetooth headset is great for long hands-free conversations. It can be used up to 30 feet away from your phone. Supports call waiting, 3-way calling and voice dialing. Includes USB charger cable and AC-to-USB adapter. Requires cell phone with Bluetooth headset profile. # Weighs 0.43 oz. # 300 hours standby time # Rechargeable Li-Po battery # Bluetooth class II power # For right or left ears Specifications Measurements: 2 1/8"L x 5/8"W x 3/4"H Weight: 0.43 oz. Battery life: Up to 9 hours talktime/300 hours standby on one charge Bluetooth version: 2.0 + EDR, Class II