1.material: ABS material, 3D sticker printing 2.Main functions: Bluetooth connection and play, hands-free phone answering, USB flash drive and TF card playing music 3.Bluetooth version: bluetrun V5.0 4.Bluetooth range :10M 5.Speaker specification:Phi is 45 mm*1.3 W * 4 Ω, 13 core magnetic 6.battery: built-in lithium battery 600 mah 7.product size: 46 mm *72 mm*162 mm 8.bluetooth protocol: A2DP, AVRCP, HSP 9.built-in microphone 10.Play time: 6 hours 11.standby time: 40hrs 12.Charging time: 3±0.5hrs 12.ctn size:470*380*350mm, per carton Quantity: 72pcs G.W :17KG