Specification:
1) Bluetooth protocol: version 2.0 CSR Blue Core 4 chip
2) Frequency: 2.4 GHz
3) Bluetooth range: 10meters.
4) Net weight: 18g
5) Talking time:up to 5 hours
6) Standby time: up to 90 hours
Features:
Gift box size: 44.5*43*34cm
weight: G.W:9kg
50pcs one carton