L21 Mini TWS Wireless Earphones Bluetooth Music Headphones Sports Earbuds Waterproof Business Headset Works on all Smartphones

L21 tws Bare metal specifications: 2 * 1.6 * 1.4cm Bare metal belt weight: 35.2g Communication distance: more than 10 meters Talk time: 4 hours Standby time: 120 hours Music time: 4 hours Battery type: lithium polymer battery Support agreement: HEP \ HSP \ A2D \ AVRCP Battery Capacity: 55AM (Capacity of Polymer Battery: 320AM) Speaker material: copper ring 8mm Process material: ABS + plating + food silicone ear caps Bluetooth version: V5.0 + EDR

Features: 9D cinema-grade holographic sound Double noise reduction No fear of interference Multi-function keys Upgrade smart operation

packing list: Earphone * 2 Manual * 1 Charging case * 1 Packing box * 1