JLC Hands free Bluetooth Kit

•Bluetooth version: 3.0 + EDR, English voice •Operating frequency range: 2.4 ~ 2.48GHZ •Bluetooth range: up to 10 meters, and it will automatically shut down after leaving the range for 5 minutes. •Support Hands-Free, Headset, AVRCP and other Bluetooth protocol specifications •High-fidelity speakers •High sensitivity microphone •Battery type: polymer lithium battery, 3.7v, 500mAh •Talk time: about 20 hours •Standby time: about 41 days •Charging time: about 3 hours •Input voltage: 5 (V) •Speaker power: 2 (w)