SX-919i Bluetooth 2.0 Handsfree Headset with Neck Strap (2.5-Hour Talk/112-Hour Standby)

- Bluetooth standard: V2.0 - Frequency: 2.4026-2.480GHz - Supported profiles: Headset, Hands-free - Built-in rechargeable li-ion battery - Operation range: Within 10 meters - Built-in microphone - Talking time: about 2.5 hours - Standby time: about 112 hours - Package included: - 1 Bluetooth headset - 1 100~240V AC adapter (US plug) - 1 USB cable - 1 Ear hook - 1 Neck strap - 1 English user manual Dimensions: 1.85 in x 1.02 in x 0.71 in (4.7 cm x 2.6 cm x 1.8 cm) Weight: 0.35 oz (10 g)